Home / 12,417.90-17,135.17-7,382.33

Finding the Fourth Proportional to 12,417.90, 17,135.17 and 7,382.33

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Solution

The fourth proportional to 12,417.90, 17,135.17 and 7,382.33 is: 10,186.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,417.90 : 17,135.17 = 7,382.33 : x
  2. Step 2: Convert to fraction form
    12,417.90/17,135.17 = 7,382.33/x
  3. Step 3: Cross multiply
    12,417.90x = 17,135.17 × 7,382.33
  4. Step 4: Simplify right side
    12,417.90x = 126,497,479.55
  5. Step 5: Solve for x
    x = 126,497,479.55/12,417.90
  6. Step 6: Final answer
    x = 10,186.70

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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.