Home / 10,479.62-15,700.92-5,538.32

Finding the Fourth Proportional to 10,479.62, 15,700.92 and 5,538.32

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Solution

The fourth proportional to 10,479.62, 15,700.92 and 5,538.32 is: 8,297.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,479.62 : 15,700.92 = 5,538.32 : x
  2. Step 2: Convert to fraction form
    10,479.62/15,700.92 = 5,538.32/x
  3. Step 3: Cross multiply
    10,479.62x = 15,700.92 × 5,538.32
  4. Step 4: Simplify right side
    10,479.62x = 86,956,719.25
  5. Step 5: Solve for x
    x = 86,956,719.25/10,479.62
  6. Step 6: Final answer
    x = 8,297.70

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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.