Home / 7,902.09-11,827.42-5,821.28

Finding the Fourth Proportional to 7,902.09, 11,827.42 and 5,821.28

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Solution

The fourth proportional to 7,902.09, 11,827.42 and 5,821.28 is: 8,712.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,902.09 : 11,827.42 = 5,821.28 : x
  2. Step 2: Convert to fraction form
    7,902.09/11,827.42 = 5,821.28/x
  3. Step 3: Cross multiply
    7,902.09x = 11,827.42 × 5,821.28
  4. Step 4: Simplify right side
    7,902.09x = 68,850,649.81
  5. Step 5: Solve for x
    x = 68,850,649.81/7,902.09
  6. Step 6: Final answer
    x = 8,712.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.