Home / 12,527.12-17,286.40-7,149.53

Finding the Fourth Proportional to 12,527.12, 17,286.40 and 7,149.53

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Solution

The fourth proportional to 12,527.12, 17,286.40 and 7,149.53 is: 9,865.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,527.12 : 17,286.40 = 7,149.53 : x
  2. Step 2: Convert to fraction form
    12,527.12/17,286.40 = 7,149.53/x
  3. Step 3: Cross multiply
    12,527.12x = 17,286.40 × 7,149.53
  4. Step 4: Simplify right side
    12,527.12x = 123,589,635.39
  5. Step 5: Solve for x
    x = 123,589,635.39/12,527.12
  6. Step 6: Final answer
    x = 9,865.77

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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.