Home / 12,545.22-17,309.58-8,512.62

Finding the Fourth Proportional to 12,545.22, 17,309.58 and 8,512.62

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Solution

The fourth proportional to 12,545.22, 17,309.58 and 8,512.62 is: 11,745.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.22 : 17,309.58 = 8,512.62 : x
  2. Step 2: Convert to fraction form
    12,545.22/17,309.58 = 8,512.62/x
  3. Step 3: Cross multiply
    12,545.22x = 17,309.58 × 8,512.62
  4. Step 4: Simplify right side
    12,545.22x = 147,349,876.90
  5. Step 5: Solve for x
    x = 147,349,876.90/12,545.22
  6. Step 6: Final answer
    x = 11,745.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.