Home / 8,672.90-13,004.38-2,667.42

Finding the Fourth Proportional to 8,672.90, 13,004.38 and 2,667.42

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Solution

The fourth proportional to 8,672.90, 13,004.38 and 2,667.42 is: 3,999.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.90 : 13,004.38 = 2,667.42 : x
  2. Step 2: Convert to fraction form
    8,672.90/13,004.38 = 2,667.42/x
  3. Step 3: Cross multiply
    8,672.90x = 13,004.38 × 2,667.42
  4. Step 4: Simplify right side
    8,672.90x = 34,688,143.30
  5. Step 5: Solve for x
    x = 34,688,143.30/8,672.90
  6. Step 6: Final answer
    x = 3,999.60

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1.5x scale

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.