Home / 7,924.80-10,936.32-4,387.92

Finding the Fourth Proportional to 7,924.80, 10,936.32 and 4,387.92

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Solution

The fourth proportional to 7,924.80, 10,936.32 and 4,387.92 is: 6,055.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,924.80 : 10,936.32 = 4,387.92 : x
  2. Step 2: Convert to fraction form
    7,924.80/10,936.32 = 4,387.92/x
  3. Step 3: Cross multiply
    7,924.80x = 10,936.32 × 4,387.92
  4. Step 4: Simplify right side
    7,924.80x = 47,987,697.25
  5. Step 5: Solve for x
    x = 47,987,697.25/7,924.80
  6. Step 6: Final answer
    x = 6,055.38

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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.