Home / 18,292.93-27,439.49-5,145.41

Finding the Fourth Proportional to 18,292.93, 27,439.49 and 5,145.41

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Solution

The fourth proportional to 18,292.93, 27,439.49 and 5,145.41 is: 7,718.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,292.93 : 27,439.49 = 5,145.41 : x
  2. Step 2: Convert to fraction form
    18,292.93/27,439.49 = 5,145.41/x
  3. Step 3: Cross multiply
    18,292.93x = 27,439.49 × 5,145.41
  4. Step 4: Simplify right side
    18,292.93x = 141,187,507.70
  5. Step 5: Solve for x
    x = 141,187,507.70/18,292.93
  6. Step 6: Final answer
    x = 7,718.15

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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.