Home / 18,720.18-25,838.26-10,766.99

Finding the Fourth Proportional to 18,720.18, 25,838.26 and 10,766.99

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Solution

The fourth proportional to 18,720.18, 25,838.26 and 10,766.99 is: 14,860.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720.18 : 25,838.26 = 10,766.99 : x
  2. Step 2: Convert to fraction form
    18,720.18/25,838.26 = 10,766.99/x
  3. Step 3: Cross multiply
    18,720.18x = 25,838.26 × 10,766.99
  4. Step 4: Simplify right side
    18,720.18x = 278,200,324.72
  5. Step 5: Solve for x
    x = 278,200,324.72/18,720.18
  6. Step 6: Final answer
    x = 14,860.99

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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.