Home / 12,386.52-17,092.80-7,081.92

Finding the Fourth Proportional to 12,386.52, 17,092.80 and 7,081.92

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Solution

The fourth proportional to 12,386.52, 17,092.80 and 7,081.92 is: 9,772.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,386.52 : 17,092.80 = 7,081.92 : x
  2. Step 2: Convert to fraction form
    12,386.52/17,092.80 = 7,081.92/x
  3. Step 3: Cross multiply
    12,386.52x = 17,092.80 × 7,081.92
  4. Step 4: Simplify right side
    12,386.52x = 121,049,842.18
  5. Step 5: Solve for x
    x = 121,049,842.18/12,386.52
  6. Step 6: Final answer
    x = 9,772.71

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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.