Home / 10,543.38-15,813.26-3,617.88

Finding the Fourth Proportional to 10,543.38, 15,813.26 and 3,617.88

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Solution

The fourth proportional to 10,543.38, 15,813.26 and 3,617.88 is: 5,426.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,543.38 : 15,813.26 = 3,617.88 : x
  2. Step 2: Convert to fraction form
    10,543.38/15,813.26 = 3,617.88/x
  3. Step 3: Cross multiply
    10,543.38x = 15,813.26 × 3,617.88
  4. Step 4: Simplify right side
    10,543.38x = 57,210,477.09
  5. Step 5: Solve for x
    x = 57,210,477.09/10,543.38
  6. Step 6: Final answer
    x = 5,426.20

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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.