Home / 26,648.72-39,980.14-11,854.43

Finding the Fourth Proportional to 26,648.72, 39,980.14 and 11,854.43

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Solution

The fourth proportional to 26,648.72, 39,980.14 and 11,854.43 is: 17,784.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,648.72 : 39,980.14 = 11,854.43 : x
  2. Step 2: Convert to fraction form
    26,648.72/39,980.14 = 11,854.43/x
  3. Step 3: Cross multiply
    26,648.72x = 39,980.14 × 11,854.43
  4. Step 4: Simplify right side
    26,648.72x = 473,941,691.41
  5. Step 5: Solve for x
    x = 473,941,691.41/26,648.72
  6. Step 6: Final answer
    x = 17,784.78

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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.