Home / 7,418.17-11,126.85-1,871.52

Finding the Fourth Proportional to 7,418.17, 11,126.85 and 1,871.52

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Solution

The fourth proportional to 7,418.17, 11,126.85 and 1,871.52 is: 2,807.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.17 : 11,126.85 = 1,871.52 : x
  2. Step 2: Convert to fraction form
    7,418.17/11,126.85 = 1,871.52/x
  3. Step 3: Cross multiply
    7,418.17x = 11,126.85 × 1,871.52
  4. Step 4: Simplify right side
    7,418.17x = 20,824,122.31
  5. Step 5: Solve for x
    x = 20,824,122.31/7,418.17
  6. Step 6: Final answer
    x = 2,807.18

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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.