Home / 12,702.14-17,562.40-11,125.72

Finding the Fourth Proportional to 12,702.14, 17,562.40 and 11,125.72

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Solution

The fourth proportional to 12,702.14, 17,562.40 and 11,125.72 is: 15,382.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,702.14 : 17,562.40 = 11,125.72 : x
  2. Step 2: Convert to fraction form
    12,702.14/17,562.40 = 11,125.72/x
  3. Step 3: Cross multiply
    12,702.14x = 17,562.40 × 11,125.72
  4. Step 4: Simplify right side
    12,702.14x = 195,394,344.93
  5. Step 5: Solve for x
    x = 195,394,344.93/12,702.14
  6. Step 6: Final answer
    x = 15,382.79

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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.