Home / 8,667.56-13,002.02-3,121.46

Finding the Fourth Proportional to 8,667.56, 13,002.02 and 3,121.46

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Solution

The fourth proportional to 8,667.56, 13,002.02 and 3,121.46 is: 4,682.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,667.56 : 13,002.02 = 3,121.46 : x
  2. Step 2: Convert to fraction form
    8,667.56/13,002.02 = 3,121.46/x
  3. Step 3: Cross multiply
    8,667.56x = 13,002.02 × 3,121.46
  4. Step 4: Simplify right side
    8,667.56x = 40,585,302.25
  5. Step 5: Solve for x
    x = 40,585,302.25/8,667.56
  6. Step 6: Final answer
    x = 4,682.44

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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.