Home / 18,539.18-27,813.32-5,391.66

Finding the Fourth Proportional to 18,539.18, 27,813.32 and 5,391.66

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Solution

The fourth proportional to 18,539.18, 27,813.32 and 5,391.66 is: 8,088.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,539.18 : 27,813.32 = 5,391.66 : x
  2. Step 2: Convert to fraction form
    18,539.18/27,813.32 = 5,391.66/x
  3. Step 3: Cross multiply
    18,539.18x = 27,813.32 × 5,391.66
  4. Step 4: Simplify right side
    18,539.18x = 149,959,937.95
  5. Step 5: Solve for x
    x = 149,959,937.95/18,539.18
  6. Step 6: Final answer
    x = 8,088.81

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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.