Home / 9,278.70-12,804.78-5,086.92

Finding the Fourth Proportional to 9,278.70, 12,804.78 and 5,086.92

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Solution

The fourth proportional to 9,278.70, 12,804.78 and 5,086.92 is: 7,020.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,278.70 : 12,804.78 = 5,086.92 : x
  2. Step 2: Convert to fraction form
    9,278.70/12,804.78 = 5,086.92/x
  3. Step 3: Cross multiply
    9,278.70x = 12,804.78 × 5,086.92
  4. Step 4: Simplify right side
    9,278.70x = 65,136,891.48
  5. Step 5: Solve for x
    x = 65,136,891.48/9,278.70
  6. Step 6: Final answer
    x = 7,020.04

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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.