Home / 15,419.79-23,115.79-5,552.13

Finding the Fourth Proportional to 15,419.79, 23,115.79 and 5,552.13

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Solution

The fourth proportional to 15,419.79, 23,115.79 and 5,552.13 is: 8,323.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,419.79 : 23,115.79 = 5,552.13 : x
  2. Step 2: Convert to fraction form
    15,419.79/23,115.79 = 5,552.13/x
  3. Step 3: Cross multiply
    15,419.79x = 23,115.79 × 5,552.13
  4. Step 4: Simplify right side
    15,419.79x = 128,341,871.13
  5. Step 5: Solve for x
    x = 128,341,871.13/15,419.79
  6. Step 6: Final answer
    x = 8,323.19

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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.