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Finding the Fourth Proportional to 18,344.40, 27,505.48 and 10,012.84

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Solution

The fourth proportional to 18,344.40, 27,505.48 and 10,012.84 is: 15,013.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,344.40 : 27,505.48 = 10,012.84 : x
  2. Step 2: Convert to fraction form
    18,344.40/27,505.48 = 10,012.84/x
  3. Step 3: Cross multiply
    18,344.40x = 27,505.48 × 10,012.84
  4. Step 4: Simplify right side
    18,344.40x = 275,407,970.36
  5. Step 5: Solve for x
    x = 275,407,970.36/18,344.40
  6. Step 6: Final answer
    x = 15,013.19

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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.