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Finding the Fourth Proportional to 8,847.04, 12,207.90 and 4,867.78

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Solution

The fourth proportional to 8,847.04, 12,207.90 and 4,867.78 is: 6,716.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,847.04 : 12,207.90 = 4,867.78 : x
  2. Step 2: Convert to fraction form
    8,847.04/12,207.90 = 4,867.78/x
  3. Step 3: Cross multiply
    8,847.04x = 12,207.90 × 4,867.78
  4. Step 4: Simplify right side
    8,847.04x = 59,425,371.46
  5. Step 5: Solve for x
    x = 59,425,371.46/8,847.04
  6. Step 6: Final answer
    x = 6,716.98

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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.