Home / 15,982.91-23,953.54-8,578.70

Finding the Fourth Proportional to 15,982.91, 23,953.54 and 8,578.70

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Solution

The fourth proportional to 15,982.91, 23,953.54 and 8,578.70 is: 12,856.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,982.91 : 23,953.54 = 8,578.70 : x
  2. Step 2: Convert to fraction form
    15,982.91/23,953.54 = 8,578.70/x
  3. Step 3: Cross multiply
    15,982.91x = 23,953.54 × 8,578.70
  4. Step 4: Simplify right side
    15,982.91x = 205,490,233.60
  5. Step 5: Solve for x
    x = 205,490,233.60/15,982.91
  6. Step 6: Final answer
    x = 12,856.87

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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.