Home / 10,929.67-15,140.05-10,708.22

Finding the Fourth Proportional to 10,929.67, 15,140.05 and 10,708.22

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Solution

The fourth proportional to 10,929.67, 15,140.05 and 10,708.22 is: 14,833.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,929.67 : 15,140.05 = 10,708.22 : x
  2. Step 2: Convert to fraction form
    10,929.67/15,140.05 = 10,708.22/x
  3. Step 3: Cross multiply
    10,929.67x = 15,140.05 × 10,708.22
  4. Step 4: Simplify right side
    10,929.67x = 162,122,997.29
  5. Step 5: Solve for x
    x = 162,122,997.29/10,929.67
  6. Step 6: Final answer
    x = 14,833.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.