Home / 18,489.08-27,732.81-5,162.15

Finding the Fourth Proportional to 18,489.08, 27,732.81 and 5,162.15

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Solution

The fourth proportional to 18,489.08, 27,732.81 and 5,162.15 is: 7,743.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,489.08 : 27,732.81 = 5,162.15 : x
  2. Step 2: Convert to fraction form
    18,489.08/27,732.81 = 5,162.15/x
  3. Step 3: Cross multiply
    18,489.08x = 27,732.81 × 5,162.15
  4. Step 4: Simplify right side
    18,489.08x = 143,160,925.14
  5. Step 5: Solve for x
    x = 143,160,925.14/18,489.08
  6. Step 6: Final answer
    x = 7,743.00

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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.