Home / 12,719.08-17,543.46-12,290.92

Finding the Fourth Proportional to 12,719.08, 17,543.46 and 12,290.92

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Solution

The fourth proportional to 12,719.08, 17,543.46 and 12,290.92 is: 16,952.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,719.08 : 17,543.46 = 12,290.92 : x
  2. Step 2: Convert to fraction form
    12,719.08/17,543.46 = 12,290.92/x
  3. Step 3: Cross multiply
    12,719.08x = 17,543.46 × 12,290.92
  4. Step 4: Simplify right side
    12,719.08x = 215,625,263.38
  5. Step 5: Solve for x
    x = 215,625,263.38/12,719.08
  6. Step 6: Final answer
    x = 16,952.90

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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.