Home / 18,085.52-27,095.88-6,391.28

Finding the Fourth Proportional to 18,085.52, 27,095.88 and 6,391.28

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Solution

The fourth proportional to 18,085.52, 27,095.88 and 6,391.28 is: 9,575.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,085.52 : 27,095.88 = 6,391.28 : x
  2. Step 2: Convert to fraction form
    18,085.52/27,095.88 = 6,391.28/x
  3. Step 3: Cross multiply
    18,085.52x = 27,095.88 × 6,391.28
  4. Step 4: Simplify right side
    18,085.52x = 173,177,355.93
  5. Step 5: Solve for x
    x = 173,177,355.93/18,085.52
  6. Step 6: Final answer
    x = 9,575.47

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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.