Home / 10,939.32-16,411.60-3,543.80

Finding the Fourth Proportional to 10,939.32, 16,411.60 and 3,543.80

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Solution

The fourth proportional to 10,939.32, 16,411.60 and 3,543.80 is: 5,316.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,939.32 : 16,411.60 = 3,543.80 : x
  2. Step 2: Convert to fraction form
    10,939.32/16,411.60 = 3,543.80/x
  3. Step 3: Cross multiply
    10,939.32x = 16,411.60 × 3,543.80
  4. Step 4: Simplify right side
    10,939.32x = 58,159,428.08
  5. Step 5: Solve for x
    x = 58,159,428.08/10,939.32
  6. Step 6: Final answer
    x = 5,316.55

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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.