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Finding the Fourth Proportional to 8,880.79, 12,257.63 and 5,343.31

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Solution

The fourth proportional to 8,880.79, 12,257.63 and 5,343.31 is: 7,375.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,880.79 : 12,257.63 = 5,343.31 : x
  2. Step 2: Convert to fraction form
    8,880.79/12,257.63 = 5,343.31/x
  3. Step 3: Cross multiply
    8,880.79x = 12,257.63 × 5,343.31
  4. Step 4: Simplify right side
    8,880.79x = 65,496,316.96
  5. Step 5: Solve for x
    x = 65,496,316.96/8,880.79
  6. Step 6: Final answer
    x = 7,375.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.