Home / 13,282.72-19,939.20-6,716.32

Finding the Fourth Proportional to 13,282.72, 19,939.20 and 6,716.32

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Solution

The fourth proportional to 13,282.72, 19,939.20 and 6,716.32 is: 10,082.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,282.72 : 19,939.20 = 6,716.32 : x
  2. Step 2: Convert to fraction form
    13,282.72/19,939.20 = 6,716.32/x
  3. Step 3: Cross multiply
    13,282.72x = 19,939.20 × 6,716.32
  4. Step 4: Simplify right side
    13,282.72x = 133,918,047.74
  5. Step 5: Solve for x
    x = 133,918,047.74/13,282.72
  6. Step 6: Final answer
    x = 10,082.13

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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.