Home / 13,279.68-19,905.48-4,965.84

Finding the Fourth Proportional to 13,279.68, 19,905.48 and 4,965.84

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Solution

The fourth proportional to 13,279.68, 19,905.48 and 4,965.84 is: 7,443.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,279.68 : 19,905.48 = 4,965.84 : x
  2. Step 2: Convert to fraction form
    13,279.68/19,905.48 = 4,965.84/x
  3. Step 3: Cross multiply
    13,279.68x = 19,905.48 × 4,965.84
  4. Step 4: Simplify right side
    13,279.68x = 98,847,428.80
  5. Step 5: Solve for x
    x = 98,847,428.80/13,279.68
  6. Step 6: Final answer
    x = 7,443.51

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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.