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Finding the Fourth Proportional to 18,373.26, 27,555.66 and 9,003.90

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Solution

The fourth proportional to 18,373.26, 27,555.66 and 9,003.90 is: 13,503.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,373.26 : 27,555.66 = 9,003.90 : x
  2. Step 2: Convert to fraction form
    18,373.26/27,555.66 = 9,003.90/x
  3. Step 3: Cross multiply
    18,373.26x = 27,555.66 × 9,003.90
  4. Step 4: Simplify right side
    18,373.26x = 248,108,407.07
  5. Step 5: Solve for x
    x = 248,108,407.07/18,373.26
  6. Step 6: Final answer
    x = 13,503.78

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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.