Home / 7,240.12-9,991.56-4,053.32

Finding the Fourth Proportional to 7,240.12, 9,991.56 and 4,053.32

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Solution

The fourth proportional to 7,240.12, 9,991.56 and 4,053.32 is: 5,593.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240.12 : 9,991.56 = 4,053.32 : x
  2. Step 2: Convert to fraction form
    7,240.12/9,991.56 = 4,053.32/x
  3. Step 3: Cross multiply
    7,240.12x = 9,991.56 × 4,053.32
  4. Step 4: Simplify right side
    7,240.12x = 40,498,989.98
  5. Step 5: Solve for x
    x = 40,498,989.98/7,240.12
  6. Step 6: Final answer
    x = 5,593.69

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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.