Home / 13,436.98-20,155.77-4,077.22

Finding the Fourth Proportional to 13,436.98, 20,155.77 and 4,077.22

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Solution

The fourth proportional to 13,436.98, 20,155.77 and 4,077.22 is: 6,115.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,436.98 : 20,155.77 = 4,077.22 : x
  2. Step 2: Convert to fraction form
    13,436.98/20,155.77 = 4,077.22/x
  3. Step 3: Cross multiply
    13,436.98x = 20,155.77 × 4,077.22
  4. Step 4: Simplify right side
    13,436.98x = 82,179,508.56
  5. Step 5: Solve for x
    x = 82,179,508.56/13,436.98
  6. Step 6: Final answer
    x = 6,115.92

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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.