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Finding the Fourth Proportional to 8,697.44, 13,047.20 and 2,854.72

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Solution

The fourth proportional to 8,697.44, 13,047.20 and 2,854.72 is: 4,282.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,697.44 : 13,047.20 = 2,854.72 : x
  2. Step 2: Convert to fraction form
    8,697.44/13,047.20 = 2,854.72/x
  3. Step 3: Cross multiply
    8,697.44x = 13,047.20 × 2,854.72
  4. Step 4: Simplify right side
    8,697.44x = 37,246,102.78
  5. Step 5: Solve for x
    x = 37,246,102.78/8,697.44
  6. Step 6: Final answer
    x = 4,282.42

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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.