Home / 15,581.80-23,373.92-7,688.55

Finding the Fourth Proportional to 15,581.80, 23,373.92 and 7,688.55

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Solution

The fourth proportional to 15,581.80, 23,373.92 and 7,688.55 is: 11,533.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,581.80 : 23,373.92 = 7,688.55 : x
  2. Step 2: Convert to fraction form
    15,581.80/23,373.92 = 7,688.55/x
  3. Step 3: Cross multiply
    15,581.80x = 23,373.92 × 7,688.55
  4. Step 4: Simplify right side
    15,581.80x = 179,711,552.62
  5. Step 5: Solve for x
    x = 179,711,552.62/15,581.80
  6. Step 6: Final answer
    x = 11,533.43

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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.