Home / 8,508,429.12-11,738,286.16-5,239,568.76

Finding the Fourth Proportional to 8,508,429.12, 11,738,286.16 and 5,239,568.76

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Solution

The fourth proportional to 8,508,429.12, 11,738,286.16 and 5,239,568.76 is: 7,228,544.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,508,429.12 : 11,738,286.16 = 5,239,568.76 : x
  2. Step 2: Convert to fraction form
    8,508,429.12/11,738,286.16 = 5,239,568.76/x
  3. Step 3: Cross multiply
    8,508,429.12x = 11,738,286.16 × 5,239,568.76
  4. Step 4: Simplify right side
    8,508,429.12x = 61,503,557,459,876.36
  5. Step 5: Solve for x
    x = 61,503,557,459,876.36/8,508,429.12
  6. Step 6: Final answer
    x = 7,228,544.38

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Double scale
Find fourth proportional to 8,508,430.12, 11,738,287.54 and 5,239,569.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.