Home / 11,436.91-17,143.74-7,739.51

Finding the Fourth Proportional to 11,436.91, 17,143.74 and 7,739.51

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Solution

The fourth proportional to 11,436.91, 17,143.74 and 7,739.51 is: 11,601.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,436.91 : 17,143.74 = 7,739.51 : x
  2. Step 2: Convert to fraction form
    11,436.91/17,143.74 = 7,739.51/x
  3. Step 3: Cross multiply
    11,436.91x = 17,143.74 × 7,739.51
  4. Step 4: Simplify right side
    11,436.91x = 132,684,147.17
  5. Step 5: Solve for x
    x = 132,684,147.17/11,436.91
  6. Step 6: Final answer
    x = 11,601.40

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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.