Home / 13,715.21-20,572.81-3,326.96

Finding the Fourth Proportional to 13,715.21, 20,572.81 and 3,326.96

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Solution

The fourth proportional to 13,715.21, 20,572.81 and 3,326.96 is: 4,990.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,715.21 : 20,572.81 = 3,326.96 : x
  2. Step 2: Convert to fraction form
    13,715.21/20,572.81 = 3,326.96/x
  3. Step 3: Cross multiply
    13,715.21x = 20,572.81 × 3,326.96
  4. Step 4: Simplify right side
    13,715.21x = 68,444,959.07
  5. Step 5: Solve for x
    x = 68,444,959.07/13,715.21
  6. Step 6: Final answer
    x = 4,990.44

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Similar ratio
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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.