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Finding the Fourth Proportional to 8,874.72, 13,314.11 and 3,031.34

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Solution

The fourth proportional to 8,874.72, 13,314.11 and 3,031.34 is: 4,547.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,874.72 : 13,314.11 = 3,031.34 : x
  2. Step 2: Convert to fraction form
    8,874.72/13,314.11 = 3,031.34/x
  3. Step 3: Cross multiply
    8,874.72x = 13,314.11 × 3,031.34
  4. Step 4: Simplify right side
    8,874.72x = 40,359,512.48
  5. Step 5: Solve for x
    x = 40,359,512.48/8,874.72
  6. Step 6: Final answer
    x = 4,547.69

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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.