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Finding the Fourth Proportional to 18,159.72, 27,247.81 and 9,270.47

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Solution

The fourth proportional to 18,159.72, 27,247.81 and 9,270.47 is: 13,909.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,159.72 : 27,247.81 = 9,270.47 : x
  2. Step 2: Convert to fraction form
    18,159.72/27,247.81 = 9,270.47/x
  3. Step 3: Cross multiply
    18,159.72x = 27,247.81 × 9,270.47
  4. Step 4: Simplify right side
    18,159.72x = 252,600,050.11
  5. Step 5: Solve for x
    x = 252,600,050.11/18,159.72
  6. Step 6: Final answer
    x = 13,909.91

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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.