Home / 12,740.90-17,514.50-11,382.26

Finding the Fourth Proportional to 12,740.90, 17,514.50 and 11,382.26

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Solution

The fourth proportional to 12,740.90, 17,514.50 and 11,382.26 is: 15,646.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,740.90 : 17,514.50 = 11,382.26 : x
  2. Step 2: Convert to fraction form
    12,740.90/17,514.50 = 11,382.26/x
  3. Step 3: Cross multiply
    12,740.90x = 17,514.50 × 11,382.26
  4. Step 4: Simplify right side
    12,740.90x = 199,354,448.29
  5. Step 5: Solve for x
    x = 199,354,448.29/12,740.90
  6. Step 6: Final answer
    x = 15,646.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.