Home / 7,743.45-10,681.12-5,724.78

Finding the Fourth Proportional to 7,743.45, 10,681.12 and 5,724.78

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Solution

The fourth proportional to 7,743.45, 10,681.12 and 5,724.78 is: 7,896.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,743.45 : 10,681.12 = 5,724.78 : x
  2. Step 2: Convert to fraction form
    7,743.45/10,681.12 = 5,724.78/x
  3. Step 3: Cross multiply
    7,743.45x = 10,681.12 × 5,724.78
  4. Step 4: Simplify right side
    7,743.45x = 61,146,997.05
  5. Step 5: Solve for x
    x = 61,146,997.05/7,743.45
  6. Step 6: Final answer
    x = 7,896.61

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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.