Home / 18,642.92-27,956.15-9,875.75

Finding the Fourth Proportional to 18,642.92, 27,956.15 and 9,875.75

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Solution

The fourth proportional to 18,642.92, 27,956.15 and 9,875.75 is: 14,809.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,642.92 : 27,956.15 = 9,875.75 : x
  2. Step 2: Convert to fraction form
    18,642.92/27,956.15 = 9,875.75/x
  3. Step 3: Cross multiply
    18,642.92x = 27,956.15 × 9,875.75
  4. Step 4: Simplify right side
    18,642.92x = 276,087,898.98
  5. Step 5: Solve for x
    x = 276,087,898.98/18,642.92
  6. Step 6: Final answer
    x = 14,809.26

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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.