Home / 6,474.80-9,668.28-5,143.56

Finding the Fourth Proportional to 6,474.80, 9,668.28 and 5,143.56

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Solution

The fourth proportional to 6,474.80, 9,668.28 and 5,143.56 is: 7,680.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,474.80 : 9,668.28 = 5,143.56 : x
  2. Step 2: Convert to fraction form
    6,474.80/9,668.28 = 5,143.56/x
  3. Step 3: Cross multiply
    6,474.80x = 9,668.28 × 5,143.56
  4. Step 4: Simplify right side
    6,474.80x = 49,729,378.28
  5. Step 5: Solve for x
    x = 49,729,378.28/6,474.80
  6. Step 6: Final answer
    x = 7,680.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.