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Finding the Fourth Proportional to 8,912.53, 13,367.22 and 2,988.82

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Solution

The fourth proportional to 8,912.53, 13,367.22 and 2,988.82 is: 4,482.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.53 : 13,367.22 = 2,988.82 : x
  2. Step 2: Convert to fraction form
    8,912.53/13,367.22 = 2,988.82/x
  3. Step 3: Cross multiply
    8,912.53x = 13,367.22 × 2,988.82
  4. Step 4: Simplify right side
    8,912.53x = 39,952,214.48
  5. Step 5: Solve for x
    x = 39,952,214.48/8,912.53
  6. Step 6: Final answer
    x = 4,482.70

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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.