Home / 18,521.80-25,559.58-10,563.85

Finding the Fourth Proportional to 18,521.80, 25,559.58 and 10,563.85

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Solution

The fourth proportional to 18,521.80, 25,559.58 and 10,563.85 is: 14,577.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,521.80 : 25,559.58 = 10,563.85 : x
  2. Step 2: Convert to fraction form
    18,521.80/25,559.58 = 10,563.85/x
  3. Step 3: Cross multiply
    18,521.80x = 25,559.58 × 10,563.85
  4. Step 4: Simplify right side
    18,521.80x = 270,007,640.75
  5. Step 5: Solve for x
    x = 270,007,640.75/18,521.80
  6. Step 6: Final answer
    x = 14,577.83

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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.