Home / 12,707.39-17,497.05-11,288.61

Finding the Fourth Proportional to 12,707.39, 17,497.05 and 11,288.61

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Solution

The fourth proportional to 12,707.39, 17,497.05 and 11,288.61 is: 15,543.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,707.39 : 17,497.05 = 11,288.61 : x
  2. Step 2: Convert to fraction form
    12,707.39/17,497.05 = 11,288.61/x
  3. Step 3: Cross multiply
    12,707.39x = 17,497.05 × 11,288.61
  4. Step 4: Simplify right side
    12,707.39x = 197,517,373.60
  5. Step 5: Solve for x
    x = 197,517,373.60/12,707.39
  6. Step 6: Final answer
    x = 15,543.51

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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.