Home / 15,319.62-22,979.16-8,731.76

Finding the Fourth Proportional to 15,319.62, 22,979.16 and 8,731.76

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Solution

The fourth proportional to 15,319.62, 22,979.16 and 8,731.76 is: 13,097.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,319.62 : 22,979.16 = 8,731.76 : x
  2. Step 2: Convert to fraction form
    15,319.62/22,979.16 = 8,731.76/x
  3. Step 3: Cross multiply
    15,319.62x = 22,979.16 × 8,731.76
  4. Step 4: Simplify right side
    15,319.62x = 200,648,395.23
  5. Step 5: Solve for x
    x = 200,648,395.23/15,319.62
  6. Step 6: Final answer
    x = 13,097.48

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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.