Home / 7,772.48-11,647.20-4,685.12

Finding the Fourth Proportional to 7,772.48, 11,647.20 and 4,685.12

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Solution

The fourth proportional to 7,772.48, 11,647.20 and 4,685.12 is: 7,020.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,772.48 : 11,647.20 = 4,685.12 : x
  2. Step 2: Convert to fraction form
    7,772.48/11,647.20 = 4,685.12/x
  3. Step 3: Cross multiply
    7,772.48x = 11,647.20 × 4,685.12
  4. Step 4: Simplify right side
    7,772.48x = 54,568,529.66
  5. Step 5: Solve for x
    x = 54,568,529.66/7,772.48
  6. Step 6: Final answer
    x = 7,020.74

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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.