Home / 13,152.44-18,149.82-7,488.02

Finding the Fourth Proportional to 13,152.44, 18,149.82 and 7,488.02

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Solution

The fourth proportional to 13,152.44, 18,149.82 and 7,488.02 is: 10,333.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,152.44 : 18,149.82 = 7,488.02 : x
  2. Step 2: Convert to fraction form
    13,152.44/18,149.82 = 7,488.02/x
  3. Step 3: Cross multiply
    13,152.44x = 18,149.82 × 7,488.02
  4. Step 4: Simplify right side
    13,152.44x = 135,906,215.16
  5. Step 5: Solve for x
    x = 135,906,215.16/13,152.44
  6. Step 6: Final answer
    x = 10,333.16

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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.