Home / 10,419.20-14,377.28-6,226.72

Finding the Fourth Proportional to 10,419.20, 14,377.28 and 6,226.72

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Solution

The fourth proportional to 10,419.20, 14,377.28 and 6,226.72 is: 8,592.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,419.20 : 14,377.28 = 6,226.72 : x
  2. Step 2: Convert to fraction form
    10,419.20/14,377.28 = 6,226.72/x
  3. Step 3: Cross multiply
    10,419.20x = 14,377.28 × 6,226.72
  4. Step 4: Simplify right side
    10,419.20x = 89,523,296.92
  5. Step 5: Solve for x
    x = 89,523,296.92/10,419.20
  6. Step 6: Final answer
    x = 8,592.15

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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.