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Finding the Fourth Proportional to 8,868.99, 12,241.34 and 5,331.52

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Solution

The fourth proportional to 8,868.99, 12,241.34 and 5,331.52 is: 7,358.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.99 : 12,241.34 = 5,331.52 : x
  2. Step 2: Convert to fraction form
    8,868.99/12,241.34 = 5,331.52/x
  3. Step 3: Cross multiply
    8,868.99x = 12,241.34 × 5,331.52
  4. Step 4: Simplify right side
    8,868.99x = 65,264,873.82
  5. Step 5: Solve for x
    x = 65,264,873.82/8,868.99
  6. Step 6: Final answer
    x = 7,358.77

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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.