Home / 8,581.35-12,863.39-3,031.23

Finding the Fourth Proportional to 8,581.35, 12,863.39 and 3,031.23

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Solution

The fourth proportional to 8,581.35, 12,863.39 and 3,031.23 is: 4,543.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,581.35 : 12,863.39 = 3,031.23 : x
  2. Step 2: Convert to fraction form
    8,581.35/12,863.39 = 3,031.23/x
  3. Step 3: Cross multiply
    8,581.35x = 12,863.39 × 3,031.23
  4. Step 4: Simplify right side
    8,581.35x = 38,991,878.51
  5. Step 5: Solve for x
    x = 38,991,878.51/8,581.35
  6. Step 6: Final answer
    x = 4,543.79

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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.