Home / 18,581.40-27,842.94-9,789.66

Finding the Fourth Proportional to 18,581.40, 27,842.94 and 9,789.66

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Solution

The fourth proportional to 18,581.40, 27,842.94 and 9,789.66 is: 14,669.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,581.40 : 27,842.94 = 9,789.66 : x
  2. Step 2: Convert to fraction form
    18,581.40/27,842.94 = 9,789.66/x
  3. Step 3: Cross multiply
    18,581.40x = 27,842.94 × 9,789.66
  4. Step 4: Simplify right side
    18,581.40x = 272,572,916.00
  5. Step 5: Solve for x
    x = 272,572,916.00/18,581.40
  6. Step 6: Final answer
    x = 14,669.13

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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.