Home / 9,479.18-13,079.68-5,500.20

Finding the Fourth Proportional to 9,479.18, 13,079.68 and 5,500.20

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Solution

The fourth proportional to 9,479.18, 13,079.68 and 5,500.20 is: 7,589.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,479.18 : 13,079.68 = 5,500.20 : x
  2. Step 2: Convert to fraction form
    9,479.18/13,079.68 = 5,500.20/x
  3. Step 3: Cross multiply
    9,479.18x = 13,079.68 × 5,500.20
  4. Step 4: Simplify right side
    9,479.18x = 71,940,855.94
  5. Step 5: Solve for x
    x = 71,940,855.94/9,479.18
  6. Step 6: Final answer
    x = 7,589.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.