Home / 13,555.89-20,335.86-4,196.75

Finding the Fourth Proportional to 13,555.89, 20,335.86 and 4,196.75

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Solution

The fourth proportional to 13,555.89, 20,335.86 and 4,196.75 is: 6,295.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,555.89 : 20,335.86 = 4,196.75 : x
  2. Step 2: Convert to fraction form
    13,555.89/20,335.86 = 4,196.75/x
  3. Step 3: Cross multiply
    13,555.89x = 20,335.86 × 4,196.75
  4. Step 4: Simplify right side
    13,555.89x = 85,344,418.78
  5. Step 5: Solve for x
    x = 85,344,418.78/13,555.89
  6. Step 6: Final answer
    x = 6,295.74

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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.