Home / 18,103.91-24,989.51-11,400.75

Finding the Fourth Proportional to 18,103.91, 24,989.51 and 11,400.75

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Solution

The fourth proportional to 18,103.91, 24,989.51 and 11,400.75 is: 15,736.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,103.91 : 24,989.51 = 11,400.75 : x
  2. Step 2: Convert to fraction form
    18,103.91/24,989.51 = 11,400.75/x
  3. Step 3: Cross multiply
    18,103.91x = 24,989.51 × 11,400.75
  4. Step 4: Simplify right side
    18,103.91x = 284,899,184.63
  5. Step 5: Solve for x
    x = 284,899,184.63/18,103.91
  6. Step 6: Final answer
    x = 15,736.89

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Double scale
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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.