Home / 15,410.78-23,102.29-5,543.13

Finding the Fourth Proportional to 15,410.78, 23,102.29 and 5,543.13

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Solution

The fourth proportional to 15,410.78, 23,102.29 and 5,543.13 is: 8,309.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,410.78 : 23,102.29 = 5,543.13 : x
  2. Step 2: Convert to fraction form
    15,410.78/23,102.29 = 5,543.13/x
  3. Step 3: Cross multiply
    15,410.78x = 23,102.29 × 5,543.13
  4. Step 4: Simplify right side
    15,410.78x = 128,059,074.74
  5. Step 5: Solve for x
    x = 128,059,074.74/15,410.78
  6. Step 6: Final answer
    x = 8,309.71

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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.