Home / 18,180.86-27,279.18-9,866.75

Finding the Fourth Proportional to 18,180.86, 27,279.18 and 9,866.75

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Solution

The fourth proportional to 18,180.86, 27,279.18 and 9,866.75 is: 14,804.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,180.86 : 27,279.18 = 9,866.75 : x
  2. Step 2: Convert to fraction form
    18,180.86/27,279.18 = 9,866.75/x
  3. Step 3: Cross multiply
    18,180.86x = 27,279.18 × 9,866.75
  4. Step 4: Simplify right side
    18,180.86x = 269,156,712.87
  5. Step 5: Solve for x
    x = 269,156,712.87/18,180.86
  6. Step 6: Final answer
    x = 14,804.40

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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.