Home / 18,343.28-27,515.34-10,388.96

Finding the Fourth Proportional to 18,343.28, 27,515.34 and 10,388.96

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Solution

The fourth proportional to 18,343.28, 27,515.34 and 10,388.96 is: 15,583.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,343.28 : 27,515.34 = 10,388.96 : x
  2. Step 2: Convert to fraction form
    18,343.28/27,515.34 = 10,388.96/x
  3. Step 3: Cross multiply
    18,343.28x = 27,515.34 × 10,388.96
  4. Step 4: Simplify right side
    18,343.28x = 285,855,714.70
  5. Step 5: Solve for x
    x = 285,855,714.70/18,343.28
  6. Step 6: Final answer
    x = 15,583.68

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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.