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Finding the Fourth Proportional to 8,445.78, 12,671.46 and 4,062.69

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Solution

The fourth proportional to 8,445.78, 12,671.46 and 4,062.69 is: 6,095.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,445.78 : 12,671.46 = 4,062.69 : x
  2. Step 2: Convert to fraction form
    8,445.78/12,671.46 = 4,062.69/x
  3. Step 3: Cross multiply
    8,445.78x = 12,671.46 × 4,062.69
  4. Step 4: Simplify right side
    8,445.78x = 51,480,213.83
  5. Step 5: Solve for x
    x = 51,480,213.83/8,445.78
  6. Step 6: Final answer
    x = 6,095.38

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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.