Home / 11,517.50-15,894.15-6,801.86

Finding the Fourth Proportional to 11,517.50, 15,894.15 and 6,801.86

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Solution

The fourth proportional to 11,517.50, 15,894.15 and 6,801.86 is: 9,386.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,517.50 : 15,894.15 = 6,801.86 : x
  2. Step 2: Convert to fraction form
    11,517.50/15,894.15 = 6,801.86/x
  3. Step 3: Cross multiply
    11,517.50x = 15,894.15 × 6,801.86
  4. Step 4: Simplify right side
    11,517.50x = 108,109,783.12
  5. Step 5: Solve for x
    x = 108,109,783.12/11,517.50
  6. Step 6: Final answer
    x = 9,386.57

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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.