Home / 13,723.72-20,586.23-3,862.78

Finding the Fourth Proportional to 13,723.72, 20,586.23 and 3,862.78

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Solution

The fourth proportional to 13,723.72, 20,586.23 and 3,862.78 is: 5,794.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.72 : 20,586.23 = 3,862.78 : x
  2. Step 2: Convert to fraction form
    13,723.72/20,586.23 = 3,862.78/x
  3. Step 3: Cross multiply
    13,723.72x = 20,586.23 × 3,862.78
  4. Step 4: Simplify right side
    13,723.72x = 79,520,077.52
  5. Step 5: Solve for x
    x = 79,520,077.52/13,723.72
  6. Step 6: Final answer
    x = 5,794.35

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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.