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Finding the Fourth Proportional to 9,319.86, 12,849.57 and 6,799.86

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Solution

The fourth proportional to 9,319.86, 12,849.57 and 6,799.86 is: 9,375.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,319.86 : 12,849.57 = 6,799.86 : x
  2. Step 2: Convert to fraction form
    9,319.86/12,849.57 = 6,799.86/x
  3. Step 3: Cross multiply
    9,319.86x = 12,849.57 × 6,799.86
  4. Step 4: Simplify right side
    9,319.86x = 87,375,277.06
  5. Step 5: Solve for x
    x = 87,375,277.06/9,319.86
  6. Step 6: Final answer
    x = 9,375.17

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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.