Home / 13,278.49-19,917.68-4,960.60

Finding the Fourth Proportional to 13,278.49, 19,917.68 and 4,960.60

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Solution

The fourth proportional to 13,278.49, 19,917.68 and 4,960.60 is: 7,440.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278.49 : 19,917.68 = 4,960.60 : x
  2. Step 2: Convert to fraction form
    13,278.49/19,917.68 = 4,960.60/x
  3. Step 3: Cross multiply
    13,278.49x = 19,917.68 × 4,960.60
  4. Step 4: Simplify right side
    13,278.49x = 98,803,618.61
  5. Step 5: Solve for x
    x = 98,803,618.61/13,278.49
  6. Step 6: Final answer
    x = 7,440.88

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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.