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Finding the Fourth Proportional to 8,013.96, 12,004.16 and 6,445.48

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Solution

The fourth proportional to 8,013.96, 12,004.16 and 6,445.48 is: 9,654.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,013.96 : 12,004.16 = 6,445.48 : x
  2. Step 2: Convert to fraction form
    8,013.96/12,004.16 = 6,445.48/x
  3. Step 3: Cross multiply
    8,013.96x = 12,004.16 × 6,445.48
  4. Step 4: Simplify right side
    8,013.96x = 77,372,573.20
  5. Step 5: Solve for x
    x = 77,372,573.20/8,013.96
  6. Step 6: Final answer
    x = 9,654.72

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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.