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Finding the Fourth Proportional to 8,868.86, 13,304.64 and 2,628.21

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Solution

The fourth proportional to 8,868.86, 13,304.64 and 2,628.21 is: 3,942.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.86 : 13,304.64 = 2,628.21 : x
  2. Step 2: Convert to fraction form
    8,868.86/13,304.64 = 2,628.21/x
  3. Step 3: Cross multiply
    8,868.86x = 13,304.64 × 2,628.21
  4. Step 4: Simplify right side
    8,868.86x = 34,967,387.89
  5. Step 5: Solve for x
    x = 34,967,387.89/8,868.86
  6. Step 6: Final answer
    x = 3,942.72

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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.