Home / 17,130.30-23,646.18-12,689.88

Finding the Fourth Proportional to 17,130.30, 23,646.18 and 12,689.88

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Solution

The fourth proportional to 17,130.30, 23,646.18 and 12,689.88 is: 17,516.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,130.30 : 23,646.18 = 12,689.88 : x
  2. Step 2: Convert to fraction form
    17,130.30/23,646.18 = 12,689.88/x
  3. Step 3: Cross multiply
    17,130.30x = 23,646.18 × 12,689.88
  4. Step 4: Simplify right side
    17,130.30x = 300,067,186.66
  5. Step 5: Solve for x
    x = 300,067,186.66/17,130.30
  6. Step 6: Final answer
    x = 17,516.75

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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.