Home / 13,575.85-20,366.96-4,215.38

Finding the Fourth Proportional to 13,575.85, 20,366.96 and 4,215.38

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Solution

The fourth proportional to 13,575.85, 20,366.96 and 4,215.38 is: 6,324.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,575.85 : 20,366.96 = 4,215.38 : x
  2. Step 2: Convert to fraction form
    13,575.85/20,366.96 = 4,215.38/x
  3. Step 3: Cross multiply
    13,575.85x = 20,366.96 × 4,215.38
  4. Step 4: Simplify right side
    13,575.85x = 85,854,454.77
  5. Step 5: Solve for x
    x = 85,854,454.77/13,575.85
  6. Step 6: Final answer
    x = 6,324.06

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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.