Home / 11,929.60-16,449.24-8,561.62

Finding the Fourth Proportional to 11,929.60, 16,449.24 and 8,561.62

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Solution

The fourth proportional to 11,929.60, 16,449.24 and 8,561.62 is: 11,805.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,929.60 : 16,449.24 = 8,561.62 : x
  2. Step 2: Convert to fraction form
    11,929.60/16,449.24 = 8,561.62/x
  3. Step 3: Cross multiply
    11,929.60x = 16,449.24 × 8,561.62
  4. Step 4: Simplify right side
    11,929.60x = 140,832,142.17
  5. Step 5: Solve for x
    x = 140,832,142.17/11,929.60
  6. Step 6: Final answer
    x = 11,805.27

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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.