Home / 7,727.40-10,671.36-5,343.48

Finding the Fourth Proportional to 7,727.40, 10,671.36 and 5,343.48

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Solution

The fourth proportional to 7,727.40, 10,671.36 and 5,343.48 is: 7,379.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,727.40 : 10,671.36 = 5,343.48 : x
  2. Step 2: Convert to fraction form
    7,727.40/10,671.36 = 5,343.48/x
  3. Step 3: Cross multiply
    7,727.40x = 10,671.36 × 5,343.48
  4. Step 4: Simplify right side
    7,727.40x = 57,022,198.73
  5. Step 5: Solve for x
    x = 57,022,198.73/7,727.40
  6. Step 6: Final answer
    x = 7,379.22

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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.