Home / 15,449.80-23,117.28-9,213.20

Finding the Fourth Proportional to 15,449.80, 23,117.28 and 9,213.20

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Solution

The fourth proportional to 15,449.80, 23,117.28 and 9,213.20 is: 13,785.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,449.80 : 23,117.28 = 9,213.20 : x
  2. Step 2: Convert to fraction form
    15,449.80/23,117.28 = 9,213.20/x
  3. Step 3: Cross multiply
    15,449.80x = 23,117.28 × 9,213.20
  4. Step 4: Simplify right side
    15,449.80x = 212,984,124.10
  5. Step 5: Solve for x
    x = 212,984,124.10/15,449.80
  6. Step 6: Final answer
    x = 13,785.56

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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.