Home / 18,517.95-25,554.44-10,559.55

Finding the Fourth Proportional to 18,517.95, 25,554.44 and 10,559.55

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Solution

The fourth proportional to 18,517.95, 25,554.44 and 10,559.55 is: 14,571.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,517.95 : 25,554.44 = 10,559.55 : x
  2. Step 2: Convert to fraction form
    18,517.95/25,554.44 = 10,559.55/x
  3. Step 3: Cross multiply
    18,517.95x = 25,554.44 × 10,559.55
  4. Step 4: Simplify right side
    18,517.95x = 269,843,334.10
  5. Step 5: Solve for x
    x = 269,843,334.10/18,517.95
  6. Step 6: Final answer
    x = 14,571.99

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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.