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Finding the Fourth Proportional to 8,874.75, 13,314.26 and 3,031.21

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Solution

The fourth proportional to 8,874.75, 13,314.26 and 3,031.21 is: 4,547.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,874.75 : 13,314.26 = 3,031.21 : x
  2. Step 2: Convert to fraction form
    8,874.75/13,314.26 = 3,031.21/x
  3. Step 3: Cross multiply
    8,874.75x = 13,314.26 × 3,031.21
  4. Step 4: Simplify right side
    8,874.75x = 40,358,318.05
  5. Step 5: Solve for x
    x = 40,358,318.05/8,874.75
  6. Step 6: Final answer
    x = 4,547.54

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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.