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Finding the Fourth Proportional to 8,859.64, 12,226.16 and 4,881.12

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Solution

The fourth proportional to 8,859.64, 12,226.16 and 4,881.12 is: 6,735.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.64 : 12,226.16 = 4,881.12 : x
  2. Step 2: Convert to fraction form
    8,859.64/12,226.16 = 4,881.12/x
  3. Step 3: Cross multiply
    8,859.64x = 12,226.16 × 4,881.12
  4. Step 4: Simplify right side
    8,859.64x = 59,677,354.10
  5. Step 5: Solve for x
    x = 59,677,354.10/8,859.64
  6. Step 6: Final answer
    x = 6,735.87

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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.