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Finding the Fourth Proportional to 11,092.87, 15,287.11 and 7,943.59

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Solution

The fourth proportional to 11,092.87, 15,287.11 and 7,943.59 is: 10,947.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,092.87 : 15,287.11 = 7,943.59 : x
  2. Step 2: Convert to fraction form
    11,092.87/15,287.11 = 7,943.59/x
  3. Step 3: Cross multiply
    11,092.87x = 15,287.11 × 7,943.59
  4. Step 4: Simplify right side
    11,092.87x = 121,434,534.12
  5. Step 5: Solve for x
    x = 121,434,534.12/11,092.87
  6. Step 6: Final answer
    x = 10,947.08

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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.