Home / 13,385.66-20,081.82-5,065.64

Finding the Fourth Proportional to 13,385.66, 20,081.82 and 5,065.64

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Solution

The fourth proportional to 13,385.66, 20,081.82 and 5,065.64 is: 7,599.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.66 : 20,081.82 = 5,065.64 : x
  2. Step 2: Convert to fraction form
    13,385.66/20,081.82 = 5,065.64/x
  3. Step 3: Cross multiply
    13,385.66x = 20,081.82 × 5,065.64
  4. Step 4: Simplify right side
    13,385.66x = 101,727,264.56
  5. Step 5: Solve for x
    x = 101,727,264.56/13,385.66
  6. Step 6: Final answer
    x = 7,599.72

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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.