Home / 26,987.90-40,472.12-11,406.74

Finding the Fourth Proportional to 26,987.90, 40,472.12 and 11,406.74

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Solution

The fourth proportional to 26,987.90, 40,472.12 and 11,406.74 is: 17,105.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,987.90 : 40,472.12 = 11,406.74 : x
  2. Step 2: Convert to fraction form
    26,987.90/40,472.12 = 11,406.74/x
  3. Step 3: Cross multiply
    26,987.90x = 40,472.12 × 11,406.74
  4. Step 4: Simplify right side
    26,987.90x = 461,654,776.25
  5. Step 5: Solve for x
    x = 461,654,776.25/26,987.90
  6. Step 6: Final answer
    x = 17,105.99

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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.