Home / 18,287.86-27,426.28-7,757.66

Finding the Fourth Proportional to 18,287.86, 27,426.28 and 7,757.66

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Solution

The fourth proportional to 18,287.86, 27,426.28 and 7,757.66 is: 11,634.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,287.86 : 27,426.28 = 7,757.66 : x
  2. Step 2: Convert to fraction form
    18,287.86/27,426.28 = 7,757.66/x
  3. Step 3: Cross multiply
    18,287.86x = 27,426.28 × 7,757.66
  4. Step 4: Simplify right side
    18,287.86x = 212,763,755.30
  5. Step 5: Solve for x
    x = 212,763,755.30/18,287.86
  6. Step 6: Final answer
    x = 11,634.15

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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.