Home / 10,972.43-15,143.10-6,726.33

Finding the Fourth Proportional to 10,972.43, 15,143.10 and 6,726.33

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Solution

The fourth proportional to 10,972.43, 15,143.10 and 6,726.33 is: 9,283.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,972.43 : 15,143.10 = 6,726.33 : x
  2. Step 2: Convert to fraction form
    10,972.43/15,143.10 = 6,726.33/x
  3. Step 3: Cross multiply
    10,972.43x = 15,143.10 × 6,726.33
  4. Step 4: Simplify right side
    10,972.43x = 101,857,487.82
  5. Step 5: Solve for x
    x = 101,857,487.82/10,972.43
  6. Step 6: Final answer
    x = 9,283.04

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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.