Home / 8,318.89-12,479.01-4,156.17

Finding the Fourth Proportional to 8,318.89, 12,479.01 and 4,156.17

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Solution

The fourth proportional to 8,318.89, 12,479.01 and 4,156.17 is: 6,234.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,318.89 : 12,479.01 = 4,156.17 : x
  2. Step 2: Convert to fraction form
    8,318.89/12,479.01 = 4,156.17/x
  3. Step 3: Cross multiply
    8,318.89x = 12,479.01 × 4,156.17
  4. Step 4: Simplify right side
    8,318.89x = 51,864,886.99
  5. Step 5: Solve for x
    x = 51,864,886.99/8,318.89
  6. Step 6: Final answer
    x = 6,234.59

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1.5x scale

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.