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Finding the Fourth Proportional to 22,689.16, 34,010.96 and 8,645.58

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Solution

The fourth proportional to 22,689.16, 34,010.96 and 8,645.58 is: 12,959.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,689.16 : 34,010.96 = 8,645.58 : x
  2. Step 2: Convert to fraction form
    22,689.16/34,010.96 = 8,645.58/x
  3. Step 3: Cross multiply
    22,689.16x = 34,010.96 × 8,645.58
  4. Step 4: Simplify right side
    22,689.16x = 294,044,432.33
  5. Step 5: Solve for x
    x = 294,044,432.33/22,689.16
  6. Step 6: Final answer
    x = 12,959.69

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1.5x scale

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.