Home / 12,707.52-19,078.73-6,471.72

Finding the Fourth Proportional to 12,707.52, 19,078.73 and 6,471.72

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Solution

The fourth proportional to 12,707.52, 19,078.73 and 6,471.72 is: 9,716.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,707.52 : 19,078.73 = 6,471.72 : x
  2. Step 2: Convert to fraction form
    12,707.52/19,078.73 = 6,471.72/x
  3. Step 3: Cross multiply
    12,707.52x = 19,078.73 × 6,471.72
  4. Step 4: Simplify right side
    12,707.52x = 123,472,198.52
  5. Step 5: Solve for x
    x = 123,472,198.52/12,707.52
  6. Step 6: Final answer
    x = 9,716.47

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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.