Home / 15,479.20-23,216.10-5,613.40

Finding the Fourth Proportional to 15,479.20, 23,216.10 and 5,613.40

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Solution

The fourth proportional to 15,479.20, 23,216.10 and 5,613.40 is: 8,419.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,479.20 : 23,216.10 = 5,613.40 : x
  2. Step 2: Convert to fraction form
    15,479.20/23,216.10 = 5,613.40/x
  3. Step 3: Cross multiply
    15,479.20x = 23,216.10 × 5,613.40
  4. Step 4: Simplify right side
    15,479.20x = 130,321,255.74
  5. Step 5: Solve for x
    x = 130,321,255.74/15,479.20
  6. Step 6: Final answer
    x = 8,419.12

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1.5x scale

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.