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Finding the Fourth Proportional to 8,991.14, 13,452.15 and 5,480.51

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Solution

The fourth proportional to 8,991.14, 13,452.15 and 5,480.51 is: 8,199.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991.14 : 13,452.15 = 5,480.51 : x
  2. Step 2: Convert to fraction form
    8,991.14/13,452.15 = 5,480.51/x
  3. Step 3: Cross multiply
    8,991.14x = 13,452.15 × 5,480.51
  4. Step 4: Simplify right side
    8,991.14x = 73,724,642.60
  5. Step 5: Solve for x
    x = 73,724,642.60/8,991.14
  6. Step 6: Final answer
    x = 8,199.70

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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.