Home / 8,145.97-11,242.64-5,162.07

Finding the Fourth Proportional to 8,145.97, 11,242.64 and 5,162.07

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Solution

The fourth proportional to 8,145.97, 11,242.64 and 5,162.07 is: 7,124.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,145.97 : 11,242.64 = 5,162.07 : x
  2. Step 2: Convert to fraction form
    8,145.97/11,242.64 = 5,162.07/x
  3. Step 3: Cross multiply
    8,145.97x = 11,242.64 × 5,162.07
  4. Step 4: Simplify right side
    8,145.97x = 58,035,349.73
  5. Step 5: Solve for x
    x = 58,035,349.73/8,145.97
  6. Step 6: Final answer
    x = 7,124.43

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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.