Home / 6,479.20-9,728.56-5,176.80

Finding the Fourth Proportional to 6,479.20, 9,728.56 and 5,176.80

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Solution

The fourth proportional to 6,479.20, 9,728.56 and 5,176.80 is: 7,773.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,479.20 : 9,728.56 = 5,176.80 : x
  2. Step 2: Convert to fraction form
    6,479.20/9,728.56 = 5,176.80/x
  3. Step 3: Cross multiply
    6,479.20x = 9,728.56 × 5,176.80
  4. Step 4: Simplify right side
    6,479.20x = 50,362,809.41
  5. Step 5: Solve for x
    x = 50,362,809.41/6,479.20
  6. Step 6: Final answer
    x = 7,773.00

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1.5x scale

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.