Home / 10,909.73-16,372.76-4,247.28

Finding the Fourth Proportional to 10,909.73, 16,372.76 and 4,247.28

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Solution

The fourth proportional to 10,909.73, 16,372.76 and 4,247.28 is: 6,374.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,909.73 : 16,372.76 = 4,247.28 : x
  2. Step 2: Convert to fraction form
    10,909.73/16,372.76 = 4,247.28/x
  3. Step 3: Cross multiply
    10,909.73x = 16,372.76 × 4,247.28
  4. Step 4: Simplify right side
    10,909.73x = 69,539,674.86
  5. Step 5: Solve for x
    x = 69,539,674.86/10,909.73
  6. Step 6: Final answer
    x = 6,374.10

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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.