Home / 7,238.55-10,857.75-5,786.91

Finding the Fourth Proportional to 7,238.55, 10,857.75 and 5,786.91

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Solution

The fourth proportional to 7,238.55, 10,857.75 and 5,786.91 is: 8,680.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,238.55 : 10,857.75 = 5,786.91 : x
  2. Step 2: Convert to fraction form
    7,238.55/10,857.75 = 5,786.91/x
  3. Step 3: Cross multiply
    7,238.55x = 10,857.75 × 5,786.91
  4. Step 4: Simplify right side
    7,238.55x = 62,832,822.05
  5. Step 5: Solve for x
    x = 62,832,822.05/7,238.55
  6. Step 6: Final answer
    x = 8,680.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.