Home / 13,381.56-18,463.62-8,003.25

Finding the Fourth Proportional to 13,381.56, 18,463.62 and 8,003.25

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Solution

The fourth proportional to 13,381.56, 18,463.62 and 8,003.25 is: 11,042.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.56 : 18,463.62 = 8,003.25 : x
  2. Step 2: Convert to fraction form
    13,381.56/18,463.62 = 8,003.25/x
  3. Step 3: Cross multiply
    13,381.56x = 18,463.62 × 8,003.25
  4. Step 4: Simplify right side
    13,381.56x = 147,768,966.77
  5. Step 5: Solve for x
    x = 147,768,966.77/13,381.56
  6. Step 6: Final answer
    x = 11,042.73

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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.