Home / 7,726.80-10,662.20-4,742.76

Finding the Fourth Proportional to 7,726.80, 10,662.20 and 4,742.76

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Solution

The fourth proportional to 7,726.80, 10,662.20 and 4,742.76 is: 6,544.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,726.80 : 10,662.20 = 4,742.76 : x
  2. Step 2: Convert to fraction form
    7,726.80/10,662.20 = 4,742.76/x
  3. Step 3: Cross multiply
    7,726.80x = 10,662.20 × 4,742.76
  4. Step 4: Simplify right side
    7,726.80x = 50,568,255.67
  5. Step 5: Solve for x
    x = 50,568,255.67/7,726.80
  6. Step 6: Final answer
    x = 6,544.53

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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.