Home / 10,381.18-15,574.24-3,361.20

Finding the Fourth Proportional to 10,381.18, 15,574.24 and 3,361.20

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Solution

The fourth proportional to 10,381.18, 15,574.24 and 3,361.20 is: 5,042.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,381.18 : 15,574.24 = 3,361.20 : x
  2. Step 2: Convert to fraction form
    10,381.18/15,574.24 = 3,361.20/x
  3. Step 3: Cross multiply
    10,381.18x = 15,574.24 × 3,361.20
  4. Step 4: Simplify right side
    10,381.18x = 52,348,088.38
  5. Step 5: Solve for x
    x = 52,348,088.38/10,381.18
  6. Step 6: Final answer
    x = 5,042.60

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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.