Home / 9,769.47-13,481.69-5,520.44

Finding the Fourth Proportional to 9,769.47, 13,481.69 and 5,520.44

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Solution

The fourth proportional to 9,769.47, 13,481.69 and 5,520.44 is: 7,618.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,769.47 : 13,481.69 = 5,520.44 : x
  2. Step 2: Convert to fraction form
    9,769.47/13,481.69 = 5,520.44/x
  3. Step 3: Cross multiply
    9,769.47x = 13,481.69 × 5,520.44
  4. Step 4: Simplify right side
    9,769.47x = 74,424,836.99
  5. Step 5: Solve for x
    x = 74,424,836.99/9,769.47
  6. Step 6: Final answer
    x = 7,618.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.