Home / 10,145.56-13,947.10-8,724.04

Finding the Fourth Proportional to 10,145.56, 13,947.10 and 8,724.04

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Solution

The fourth proportional to 10,145.56, 13,947.10 and 8,724.04 is: 11,992.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,145.56 : 13,947.10 = 8,724.04 : x
  2. Step 2: Convert to fraction form
    10,145.56/13,947.10 = 8,724.04/x
  3. Step 3: Cross multiply
    10,145.56x = 13,947.10 × 8,724.04
  4. Step 4: Simplify right side
    10,145.56x = 121,675,058.28
  5. Step 5: Solve for x
    x = 121,675,058.28/10,145.56
  6. Step 6: Final answer
    x = 11,992.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.