Home / 8,418.23-12,628.71-2,871.01

Finding the Fourth Proportional to 8,418.23, 12,628.71 and 2,871.01

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Solution

The fourth proportional to 8,418.23, 12,628.71 and 2,871.01 is: 4,306.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.23 : 12,628.71 = 2,871.01 : x
  2. Step 2: Convert to fraction form
    8,418.23/12,628.71 = 2,871.01/x
  3. Step 3: Cross multiply
    8,418.23x = 12,628.71 × 2,871.01
  4. Step 4: Simplify right side
    8,418.23x = 36,257,168.48
  5. Step 5: Solve for x
    x = 36,257,168.48/8,418.23
  6. Step 6: Final answer
    x = 4,306.98

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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.