Home / 12,727.08-17,562.42-7,137

Finding the Fourth Proportional to 12,727.08, 17,562.42 and 7,137

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Solution

The fourth proportional to 12,727.08, 17,562.42 and 7,137 is: 9,848.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,727.08 : 17,562.42 = 7,137 : x
  2. Step 2: Convert to fraction form
    12,727.08/17,562.42 = 7,137/x
  3. Step 3: Cross multiply
    12,727.08x = 17,562.42 × 7,137
  4. Step 4: Simplify right side
    12,727.08x = 125,342,991.54
  5. Step 5: Solve for x
    x = 125,342,991.54/12,727.08
  6. Step 6: Final answer
    x = 9,848.53

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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.