Home / 15,439.76-23,148.12-7,229.84

Finding the Fourth Proportional to 15,439.76, 23,148.12 and 7,229.84

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Solution

The fourth proportional to 15,439.76, 23,148.12 and 7,229.84 is: 10,839.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,439.76 : 23,148.12 = 7,229.84 : x
  2. Step 2: Convert to fraction form
    15,439.76/23,148.12 = 7,229.84/x
  3. Step 3: Cross multiply
    15,439.76x = 23,148.12 × 7,229.84
  4. Step 4: Simplify right side
    15,439.76x = 167,357,203.90
  5. Step 5: Solve for x
    x = 167,357,203.90/15,439.76
  6. Step 6: Final answer
    x = 10,839.37

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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.