Home / 10,810.60-16,194.78-9,428.20

Finding the Fourth Proportional to 10,810.60, 16,194.78 and 9,428.20

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Solution

The fourth proportional to 10,810.60, 16,194.78 and 9,428.20 is: 14,123.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,810.60 : 16,194.78 = 9,428.20 : x
  2. Step 2: Convert to fraction form
    10,810.60/16,194.78 = 9,428.20/x
  3. Step 3: Cross multiply
    10,810.60x = 16,194.78 × 9,428.20
  4. Step 4: Simplify right side
    10,810.60x = 152,687,624.80
  5. Step 5: Solve for x
    x = 152,687,624.80/10,810.60
  6. Step 6: Final answer
    x = 14,123.88

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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.