Home / 8,396.20-11,595.20-6,918.76

Finding the Fourth Proportional to 8,396.20, 11,595.20 and 6,918.76

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Solution

The fourth proportional to 8,396.20, 11,595.20 and 6,918.76 is: 9,554.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,396.20 : 11,595.20 = 6,918.76 : x
  2. Step 2: Convert to fraction form
    8,396.20/11,595.20 = 6,918.76/x
  3. Step 3: Cross multiply
    8,396.20x = 11,595.20 × 6,918.76
  4. Step 4: Simplify right side
    8,396.20x = 80,224,405.95
  5. Step 5: Solve for x
    x = 80,224,405.95/8,396.20
  6. Step 6: Final answer
    x = 9,554.85

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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.