Home / 8,347.40-12,516.72-3,081.04

Finding the Fourth Proportional to 8,347.40, 12,516.72 and 3,081.04

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Solution

The fourth proportional to 8,347.40, 12,516.72 and 3,081.04 is: 4,619.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,347.40 : 12,516.72 = 3,081.04 : x
  2. Step 2: Convert to fraction form
    8,347.40/12,516.72 = 3,081.04/x
  3. Step 3: Cross multiply
    8,347.40x = 12,516.72 × 3,081.04
  4. Step 4: Simplify right side
    8,347.40x = 38,564,514.99
  5. Step 5: Solve for x
    x = 38,564,514.99/8,347.40
  6. Step 6: Final answer
    x = 4,619.94

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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.