Home / 18,114.83-24,987.85-11,389.80

Finding the Fourth Proportional to 18,114.83, 24,987.85 and 11,389.80

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Solution

The fourth proportional to 18,114.83, 24,987.85 and 11,389.80 is: 15,711.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,114.83 : 24,987.85 = 11,389.80 : x
  2. Step 2: Convert to fraction form
    18,114.83/24,987.85 = 11,389.80/x
  3. Step 3: Cross multiply
    18,114.83x = 24,987.85 × 11,389.80
  4. Step 4: Simplify right side
    18,114.83x = 284,606,613.93
  5. Step 5: Solve for x
    x = 284,606,613.93/18,114.83
  6. Step 6: Final answer
    x = 15,711.25

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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.