Home / 8,316.46-12,471.04-3,118.69

Finding the Fourth Proportional to 8,316.46, 12,471.04 and 3,118.69

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Solution

The fourth proportional to 8,316.46, 12,471.04 and 3,118.69 is: 4,676.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,316.46 : 12,471.04 = 3,118.69 : x
  2. Step 2: Convert to fraction form
    8,316.46/12,471.04 = 3,118.69/x
  3. Step 3: Cross multiply
    8,316.46x = 12,471.04 × 3,118.69
  4. Step 4: Simplify right side
    8,316.46x = 38,893,280.46
  5. Step 5: Solve for x
    x = 38,893,280.46/8,316.46
  6. Step 6: Final answer
    x = 4,676.66

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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.