Home / 18,117.07-24,990.96-11,392.05

Finding the Fourth Proportional to 18,117.07, 24,990.96 and 11,392.05

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Solution

The fourth proportional to 18,117.07, 24,990.96 and 11,392.05 is: 15,714.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.07 : 24,990.96 = 11,392.05 : x
  2. Step 2: Convert to fraction form
    18,117.07/24,990.96 = 11,392.05/x
  3. Step 3: Cross multiply
    18,117.07x = 24,990.96 × 11,392.05
  4. Step 4: Simplify right side
    18,117.07x = 284,698,265.87
  5. Step 5: Solve for x
    x = 284,698,265.87/18,117.07
  6. Step 6: Final answer
    x = 15,714.37

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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.