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Finding the Fourth Proportional to 9,102.57, 13,582.45 and 8,545.29

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Solution

The fourth proportional to 9,102.57, 13,582.45 and 8,545.29 is: 12,750.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,102.57 : 13,582.45 = 8,545.29 : x
  2. Step 2: Convert to fraction form
    9,102.57/13,582.45 = 8,545.29/x
  3. Step 3: Cross multiply
    9,102.57x = 13,582.45 × 8,545.29
  4. Step 4: Simplify right side
    9,102.57x = 116,065,927.61
  5. Step 5: Solve for x
    x = 116,065,927.61/9,102.57
  6. Step 6: Final answer
    x = 12,750.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.