Home / 8,667.43-13,000.83-3,119.53

Finding the Fourth Proportional to 8,667.43, 13,000.83 and 3,119.53

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Solution

The fourth proportional to 8,667.43, 13,000.83 and 3,119.53 is: 4,679.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,667.43 : 13,000.83 = 3,119.53 : x
  2. Step 2: Convert to fraction form
    8,667.43/13,000.83 = 3,119.53/x
  3. Step 3: Cross multiply
    8,667.43x = 13,000.83 × 3,119.53
  4. Step 4: Simplify right side
    8,667.43x = 40,556,479.21
  5. Step 5: Solve for x
    x = 40,556,479.21/8,667.43
  6. Step 6: Final answer
    x = 4,679.18

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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.