Home / 10,972.60-15,142.56-6,192.49

Finding the Fourth Proportional to 10,972.60, 15,142.56 and 6,192.49

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Solution

The fourth proportional to 10,972.60, 15,142.56 and 6,192.49 is: 8,545.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,972.60 : 15,142.56 = 6,192.49 : x
  2. Step 2: Convert to fraction form
    10,972.60/15,142.56 = 6,192.49/x
  3. Step 3: Cross multiply
    10,972.60x = 15,142.56 × 6,192.49
  4. Step 4: Simplify right side
    10,972.60x = 93,770,151.37
  5. Step 5: Solve for x
    x = 93,770,151.37/10,972.60
  6. Step 6: Final answer
    x = 8,545.85

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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.