Home / 18,132.35-27,209.31-9,812.20

Finding the Fourth Proportional to 18,132.35, 27,209.31 and 9,812.20

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Solution

The fourth proportional to 18,132.35, 27,209.31 and 9,812.20 is: 14,724.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,132.35 : 27,209.31 = 9,812.20 : x
  2. Step 2: Convert to fraction form
    18,132.35/27,209.31 = 9,812.20/x
  3. Step 3: Cross multiply
    18,132.35x = 27,209.31 × 9,812.20
  4. Step 4: Simplify right side
    18,132.35x = 266,983,191.58
  5. Step 5: Solve for x
    x = 266,983,191.58/18,132.35
  6. Step 6: Final answer
    x = 14,724.14

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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.