Home / 18,518.24-25,555.74-10,134.92

Finding the Fourth Proportional to 18,518.24, 25,555.74 and 10,134.92

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Solution

The fourth proportional to 18,518.24, 25,555.74 and 10,134.92 is: 13,986.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,518.24 : 25,555.74 = 10,134.92 : x
  2. Step 2: Convert to fraction form
    18,518.24/25,555.74 = 10,134.92/x
  3. Step 3: Cross multiply
    18,518.24x = 25,555.74 × 10,134.92
  4. Step 4: Simplify right side
    18,518.24x = 259,005,380.44
  5. Step 5: Solve for x
    x = 259,005,380.44/18,518.24
  6. Step 6: Final answer
    x = 13,986.50

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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.