Home / 7,418.67-11,127.60-1,872.02

Finding the Fourth Proportional to 7,418.67, 11,127.60 and 1,872.02

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Solution

The fourth proportional to 7,418.67, 11,127.60 and 1,872.02 is: 2,807.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.67 : 11,127.60 = 1,872.02 : x
  2. Step 2: Convert to fraction form
    7,418.67/11,127.60 = 1,872.02/x
  3. Step 3: Cross multiply
    7,418.67x = 11,127.60 × 1,872.02
  4. Step 4: Simplify right side
    7,418.67x = 20,831,034.11
  5. Step 5: Solve for x
    x = 20,831,034.11/7,418.67
  6. Step 6: Final answer
    x = 2,807.92

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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.