Home / 8,204.12-12,312.45-4,258.61

Finding the Fourth Proportional to 8,204.12, 12,312.45 and 4,258.61

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Solution

The fourth proportional to 8,204.12, 12,312.45 and 4,258.61 is: 6,391.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,204.12 : 12,312.45 = 4,258.61 : x
  2. Step 2: Convert to fraction form
    8,204.12/12,312.45 = 4,258.61/x
  3. Step 3: Cross multiply
    8,204.12x = 12,312.45 × 4,258.61
  4. Step 4: Simplify right side
    8,204.12x = 52,433,922.69
  5. Step 5: Solve for x
    x = 52,433,922.69/8,204.12
  6. Step 6: Final answer
    x = 6,391.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.