Home / 10,100.66-13,939.16-5,624.28

Finding the Fourth Proportional to 10,100.66, 13,939.16 and 5,624.28

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Solution

The fourth proportional to 10,100.66, 13,939.16 and 5,624.28 is: 7,761.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,100.66 : 13,939.16 = 5,624.28 : x
  2. Step 2: Convert to fraction form
    10,100.66/13,939.16 = 5,624.28/x
  3. Step 3: Cross multiply
    10,100.66x = 13,939.16 × 5,624.28
  4. Step 4: Simplify right side
    10,100.66x = 78,397,710.68
  5. Step 5: Solve for x
    x = 78,397,710.68/10,100.66
  6. Step 6: Final answer
    x = 7,761.65

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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.