Home / 10,979.30-15,151.46-5,943.56

Finding the Fourth Proportional to 10,979.30, 15,151.46 and 5,943.56

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Solution

The fourth proportional to 10,979.30, 15,151.46 and 5,943.56 is: 8,202.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.30 : 15,151.46 = 5,943.56 : x
  2. Step 2: Convert to fraction form
    10,979.30/15,151.46 = 5,943.56/x
  3. Step 3: Cross multiply
    10,979.30x = 15,151.46 × 5,943.56
  4. Step 4: Simplify right side
    10,979.30x = 90,053,611.60
  5. Step 5: Solve for x
    x = 90,053,611.60/10,979.30
  6. Step 6: Final answer
    x = 8,202.13

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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.