Home / 18,520.74-25,559.22-10,137.24

Finding the Fourth Proportional to 18,520.74, 25,559.22 and 10,137.24

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Solution

The fourth proportional to 18,520.74, 25,559.22 and 10,137.24 is: 13,989.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520.74 : 25,559.22 = 10,137.24 : x
  2. Step 2: Convert to fraction form
    18,520.74/25,559.22 = 10,137.24/x
  3. Step 3: Cross multiply
    18,520.74x = 25,559.22 × 10,137.24
  4. Step 4: Simplify right side
    18,520.74x = 259,099,947.35
  5. Step 5: Solve for x
    x = 259,099,947.35/18,520.74
  6. Step 6: Final answer
    x = 13,989.72

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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.