Home / 13,350.56-18,423.20-7,381.92

Finding the Fourth Proportional to 13,350.56, 18,423.20 and 7,381.92

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Solution

The fourth proportional to 13,350.56, 18,423.20 and 7,381.92 is: 10,186.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,350.56 : 18,423.20 = 7,381.92 : x
  2. Step 2: Convert to fraction form
    13,350.56/18,423.20 = 7,381.92/x
  3. Step 3: Cross multiply
    13,350.56x = 18,423.20 × 7,381.92
  4. Step 4: Simplify right side
    13,350.56x = 135,998,588.54
  5. Step 5: Solve for x
    x = 135,998,588.54/13,350.56
  6. Step 6: Final answer
    x = 10,186.73

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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.