Home / 15,140.89-20,892.68-8,767.61

Finding the Fourth Proportional to 15,140.89, 20,892.68 and 8,767.61

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Solution

The fourth proportional to 15,140.89, 20,892.68 and 8,767.61 is: 12,098.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,140.89 : 20,892.68 = 8,767.61 : x
  2. Step 2: Convert to fraction form
    15,140.89/20,892.68 = 8,767.61/x
  3. Step 3: Cross multiply
    15,140.89x = 20,892.68 × 8,767.61
  4. Step 4: Simplify right side
    15,140.89x = 183,178,765.63
  5. Step 5: Solve for x
    x = 183,178,765.63/15,140.89
  6. Step 6: Final answer
    x = 12,098.29

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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.