Home / 18,767.50-25,887.86-12,394.15

Finding the Fourth Proportional to 18,767.50, 25,887.86 and 12,394.15

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Solution

The fourth proportional to 18,767.50, 25,887.86 and 12,394.15 is: 17,096.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,767.50 : 25,887.86 = 12,394.15 : x
  2. Step 2: Convert to fraction form
    18,767.50/25,887.86 = 12,394.15/x
  3. Step 3: Cross multiply
    18,767.50x = 25,887.86 × 12,394.15
  4. Step 4: Simplify right side
    18,767.50x = 320,858,020.02
  5. Step 5: Solve for x
    x = 320,858,020.02/18,767.50
  6. Step 6: Final answer
    x = 17,096.47

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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.