Home / 15,919.92-23,890.80-8,134.08

Finding the Fourth Proportional to 15,919.92, 23,890.80 and 8,134.08

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Solution

The fourth proportional to 15,919.92, 23,890.80 and 8,134.08 is: 12,206.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,919.92 : 23,890.80 = 8,134.08 : x
  2. Step 2: Convert to fraction form
    15,919.92/23,890.80 = 8,134.08/x
  3. Step 3: Cross multiply
    15,919.92x = 23,890.80 × 8,134.08
  4. Step 4: Simplify right side
    15,919.92x = 194,329,678.46
  5. Step 5: Solve for x
    x = 194,329,678.46/15,919.92
  6. Step 6: Final answer
    x = 12,206.70

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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.