Home / 15,128.59-22,695.31-5,270.67

Finding the Fourth Proportional to 15,128.59, 22,695.31 and 5,270.67

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Solution

The fourth proportional to 15,128.59, 22,695.31 and 5,270.67 is: 7,906.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,128.59 : 22,695.31 = 5,270.67 : x
  2. Step 2: Convert to fraction form
    15,128.59/22,695.31 = 5,270.67/x
  3. Step 3: Cross multiply
    15,128.59x = 22,695.31 × 5,270.67
  4. Step 4: Simplify right side
    15,128.59x = 119,619,489.56
  5. Step 5: Solve for x
    x = 119,619,489.56/15,128.59
  6. Step 6: Final answer
    x = 7,906.85

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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.