Home / 18,616.31-25,680.10-11,441.23

Finding the Fourth Proportional to 18,616.31, 25,680.10 and 11,441.23

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Solution

The fourth proportional to 18,616.31, 25,680.10 and 11,441.23 is: 15,782.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,616.31 : 25,680.10 = 11,441.23 : x
  2. Step 2: Convert to fraction form
    18,616.31/25,680.10 = 11,441.23/x
  3. Step 3: Cross multiply
    18,616.31x = 25,680.10 × 11,441.23
  4. Step 4: Simplify right side
    18,616.31x = 293,811,930.52
  5. Step 5: Solve for x
    x = 293,811,930.52/18,616.31
  6. Step 6: Final answer
    x = 15,782.50

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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.