Home / 13,331.48-18,397.33-7,363.55

Finding the Fourth Proportional to 13,331.48, 18,397.33 and 7,363.55

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Solution

The fourth proportional to 13,331.48, 18,397.33 and 7,363.55 is: 10,161.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331.48 : 18,397.33 = 7,363.55 : x
  2. Step 2: Convert to fraction form
    13,331.48/18,397.33 = 7,363.55/x
  3. Step 3: Cross multiply
    13,331.48x = 18,397.33 × 7,363.55
  4. Step 4: Simplify right side
    13,331.48x = 135,469,686.91
  5. Step 5: Solve for x
    x = 135,469,686.91/13,331.48
  6. Step 6: Final answer
    x = 10,161.64

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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.