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Finding the Fourth Proportional to 8,471.10, 12,714.45 and 4,314.10

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Solution

The fourth proportional to 8,471.10, 12,714.45 and 4,314.10 is: 6,475.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,471.10 : 12,714.45 = 4,314.10 : x
  2. Step 2: Convert to fraction form
    8,471.10/12,714.45 = 4,314.10/x
  3. Step 3: Cross multiply
    8,471.10x = 12,714.45 × 4,314.10
  4. Step 4: Simplify right side
    8,471.10x = 54,851,408.75
  5. Step 5: Solve for x
    x = 54,851,408.75/8,471.10
  6. Step 6: Final answer
    x = 6,475.12

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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.