Home / 18,708.29-25,824.80-12,743.24

Finding the Fourth Proportional to 18,708.29, 25,824.80 and 12,743.24

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Solution

The fourth proportional to 18,708.29, 25,824.80 and 12,743.24 is: 17,590.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,708.29 : 25,824.80 = 12,743.24 : x
  2. Step 2: Convert to fraction form
    18,708.29/25,824.80 = 12,743.24/x
  3. Step 3: Cross multiply
    18,708.29x = 25,824.80 × 12,743.24
  4. Step 4: Simplify right side
    18,708.29x = 329,091,625.20
  5. Step 5: Solve for x
    x = 329,091,625.20/18,708.29
  6. Step 6: Final answer
    x = 17,590.69

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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.