Home / 12,724.11-17,559.32-7,134.75

Finding the Fourth Proportional to 12,724.11, 17,559.32 and 7,134.75

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Solution

The fourth proportional to 12,724.11, 17,559.32 and 7,134.75 is: 9,845.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,724.11 : 17,559.32 = 7,134.75 : x
  2. Step 2: Convert to fraction form
    12,724.11/17,559.32 = 7,134.75/x
  3. Step 3: Cross multiply
    12,724.11x = 17,559.32 × 7,134.75
  4. Step 4: Simplify right side
    12,724.11x = 125,281,322.70
  5. Step 5: Solve for x
    x = 125,281,322.70/12,724.11
  6. Step 6: Final answer
    x = 9,845.98

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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.