Home / 10,591.28-15,885.87-6,430.17

Finding the Fourth Proportional to 10,591.28, 15,885.87 and 6,430.17

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Solution

The fourth proportional to 10,591.28, 15,885.87 and 6,430.17 is: 9,644.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,591.28 : 15,885.87 = 6,430.17 : x
  2. Step 2: Convert to fraction form
    10,591.28/15,885.87 = 6,430.17/x
  3. Step 3: Cross multiply
    10,591.28x = 15,885.87 × 6,430.17
  4. Step 4: Simplify right side
    10,591.28x = 102,148,844.70
  5. Step 5: Solve for x
    x = 102,148,844.70/10,591.28
  6. Step 6: Final answer
    x = 9,644.62

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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.