Home / 18,539.75-25,585.49-10,156.79

Finding the Fourth Proportional to 18,539.75, 25,585.49 and 10,156.79

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Solution

The fourth proportional to 18,539.75, 25,585.49 and 10,156.79 is: 14,016.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,539.75 : 25,585.49 = 10,156.79 : x
  2. Step 2: Convert to fraction form
    18,539.75/25,585.49 = 10,156.79/x
  3. Step 3: Cross multiply
    18,539.75x = 25,585.49 × 10,156.79
  4. Step 4: Simplify right side
    18,539.75x = 259,866,448.98
  5. Step 5: Solve for x
    x = 259,866,448.98/18,539.75
  6. Step 6: Final answer
    x = 14,016.72

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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.