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Finding the Fourth Proportional to 8,880.76, 13,321.14 and 4,499.47

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Solution

The fourth proportional to 8,880.76, 13,321.14 and 4,499.47 is: 6,749.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,880.76 : 13,321.14 = 4,499.47 : x
  2. Step 2: Convert to fraction form
    8,880.76/13,321.14 = 4,499.47/x
  3. Step 3: Cross multiply
    8,880.76x = 13,321.14 × 4,499.47
  4. Step 4: Simplify right side
    8,880.76x = 59,938,094.88
  5. Step 5: Solve for x
    x = 59,938,094.88/8,880.76
  6. Step 6: Final answer
    x = 6,749.21

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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.