Home / 18,132.66-27,209.77-9,812.51

Finding the Fourth Proportional to 18,132.66, 27,209.77 and 9,812.51

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Solution

The fourth proportional to 18,132.66, 27,209.77 and 9,812.51 is: 14,724.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,132.66 : 27,209.77 = 9,812.51 : x
  2. Step 2: Convert to fraction form
    18,132.66/27,209.77 = 9,812.51/x
  3. Step 3: Cross multiply
    18,132.66x = 27,209.77 × 9,812.51
  4. Step 4: Simplify right side
    18,132.66x = 266,996,140.22
  5. Step 5: Solve for x
    x = 266,996,140.22/18,132.66
  6. Step 6: Final answer
    x = 14,724.60

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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.