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Finding the Fourth Proportional to 8,773.93, 12,104.40 and 6,378.65

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Solution

The fourth proportional to 8,773.93, 12,104.40 and 6,378.65 is: 8,799.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,773.93 : 12,104.40 = 6,378.65 : x
  2. Step 2: Convert to fraction form
    8,773.93/12,104.40 = 6,378.65/x
  3. Step 3: Cross multiply
    8,773.93x = 12,104.40 × 6,378.65
  4. Step 4: Simplify right side
    8,773.93x = 77,209,686.03
  5. Step 5: Solve for x
    x = 77,209,686.03/8,773.93
  6. Step 6: Final answer
    x = 8,799.90

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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.