Home / 14,511.61-21,766.50-8,663.81

Finding the Fourth Proportional to 14,511.61, 21,766.50 and 8,663.81

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Solution

The fourth proportional to 14,511.61, 21,766.50 and 8,663.81 is: 12,995.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,511.61 : 21,766.50 = 8,663.81 : x
  2. Step 2: Convert to fraction form
    14,511.61/21,766.50 = 8,663.81/x
  3. Step 3: Cross multiply
    14,511.61x = 21,766.50 × 8,663.81
  4. Step 4: Simplify right side
    14,511.61x = 188,580,874.78
  5. Step 5: Solve for x
    x = 188,580,874.78/14,511.61
  6. Step 6: Final answer
    x = 12,995.17

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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.