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Finding the Fourth Proportional to 8,837.20, 13,266.60 and 4,891.60

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Solution

The fourth proportional to 8,837.20, 13,266.60 and 4,891.60 is: 7,343.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,837.20 : 13,266.60 = 4,891.60 : x
  2. Step 2: Convert to fraction form
    8,837.20/13,266.60 = 4,891.60/x
  3. Step 3: Cross multiply
    8,837.20x = 13,266.60 × 4,891.60
  4. Step 4: Simplify right side
    8,837.20x = 64,894,900.56
  5. Step 5: Solve for x
    x = 64,894,900.56/8,837.20
  6. Step 6: Final answer
    x = 7,343.38

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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.