Home / 18,685.24-25,776.82-11,127.26

Finding the Fourth Proportional to 18,685.24, 25,776.82 and 11,127.26

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Solution

The fourth proportional to 18,685.24, 25,776.82 and 11,127.26 is: 15,350.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685.24 : 25,776.82 = 11,127.26 : x
  2. Step 2: Convert to fraction form
    18,685.24/25,776.82 = 11,127.26/x
  3. Step 3: Cross multiply
    18,685.24x = 25,776.82 × 11,127.26
  4. Step 4: Simplify right side
    18,685.24x = 286,825,378.11
  5. Step 5: Solve for x
    x = 286,825,378.11/18,685.24
  6. Step 6: Final answer
    x = 15,350.37

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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.