Home / 10,956.20-16,434.30-4,387.10

Finding the Fourth Proportional to 10,956.20, 16,434.30 and 4,387.10

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Solution

The fourth proportional to 10,956.20, 16,434.30 and 4,387.10 is: 6,580.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,956.20 : 16,434.30 = 4,387.10 : x
  2. Step 2: Convert to fraction form
    10,956.20/16,434.30 = 4,387.10/x
  3. Step 3: Cross multiply
    10,956.20x = 16,434.30 × 4,387.10
  4. Step 4: Simplify right side
    10,956.20x = 72,098,917.53
  5. Step 5: Solve for x
    x = 72,098,917.53/10,956.20
  6. Step 6: Final answer
    x = 6,580.65

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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.