Home / 12,158.28-18,240.53-3,393.23

Finding the Fourth Proportional to 12,158.28, 18,240.53 and 3,393.23

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Solution

The fourth proportional to 12,158.28, 18,240.53 and 3,393.23 is: 5,090.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,158.28 : 18,240.53 = 3,393.23 : x
  2. Step 2: Convert to fraction form
    12,158.28/18,240.53 = 3,393.23/x
  3. Step 3: Cross multiply
    12,158.28x = 18,240.53 × 3,393.23
  4. Step 4: Simplify right side
    12,158.28x = 61,894,205.44
  5. Step 5: Solve for x
    x = 61,894,205.44/12,158.28
  6. Step 6: Final answer
    x = 5,090.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.