Home / 13,575.72-20,366.76-4,215.26

Finding the Fourth Proportional to 13,575.72, 20,366.76 and 4,215.26

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Solution

The fourth proportional to 13,575.72, 20,366.76 and 4,215.26 is: 6,323.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,575.72 : 20,366.76 = 4,215.26 : x
  2. Step 2: Convert to fraction form
    13,575.72/20,366.76 = 4,215.26/x
  3. Step 3: Cross multiply
    13,575.72x = 20,366.76 × 4,215.26
  4. Step 4: Simplify right side
    13,575.72x = 85,851,086.92
  5. Step 5: Solve for x
    x = 85,851,086.92/13,575.72
  6. Step 6: Final answer
    x = 6,323.87

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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.