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Finding the Fourth Proportional to 8,891.69, 13,337.40 and 2,651.72

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Solution

The fourth proportional to 8,891.69, 13,337.40 and 2,651.72 is: 3,977.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,891.69 : 13,337.40 = 2,651.72 : x
  2. Step 2: Convert to fraction form
    8,891.69/13,337.40 = 2,651.72/x
  3. Step 3: Cross multiply
    8,891.69x = 13,337.40 × 2,651.72
  4. Step 4: Simplify right side
    8,891.69x = 35,367,106.23
  5. Step 5: Solve for x
    x = 35,367,106.23/8,891.69
  6. Step 6: Final answer
    x = 3,977.55

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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.