Home / 16,819.60-25,229.40-10,981.12

Finding the Fourth Proportional to 16,819.60, 25,229.40 and 10,981.12

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Solution

The fourth proportional to 16,819.60, 25,229.40 and 10,981.12 is: 16,471.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,819.60 : 25,229.40 = 10,981.12 : x
  2. Step 2: Convert to fraction form
    16,819.60/25,229.40 = 10,981.12/x
  3. Step 3: Cross multiply
    16,819.60x = 25,229.40 × 10,981.12
  4. Step 4: Simplify right side
    16,819.60x = 277,047,068.93
  5. Step 5: Solve for x
    x = 277,047,068.93/16,819.60
  6. Step 6: Final answer
    x = 16,471.68

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Similar ratio
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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.