Home / 17,678.92-26,517.18-12,757.48

Finding the Fourth Proportional to 17,678.92, 26,517.18 and 12,757.48

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Solution

The fourth proportional to 17,678.92, 26,517.18 and 12,757.48 is: 19,135.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,678.92 : 26,517.18 = 12,757.48 : x
  2. Step 2: Convert to fraction form
    17,678.92/26,517.18 = 12,757.48/x
  3. Step 3: Cross multiply
    17,678.92x = 26,517.18 × 12,757.48
  4. Step 4: Simplify right side
    17,678.92x = 338,292,393.51
  5. Step 5: Solve for x
    x = 338,292,393.51/17,678.92
  6. Step 6: Final answer
    x = 19,135.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.