Home / 18,620.15-25,695.76-10,122.27

Finding the Fourth Proportional to 18,620.15, 25,695.76 and 10,122.27

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Solution

The fourth proportional to 18,620.15, 25,695.76 and 10,122.27 is: 13,968.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,620.15 : 25,695.76 = 10,122.27 : x
  2. Step 2: Convert to fraction form
    18,620.15/25,695.76 = 10,122.27/x
  3. Step 3: Cross multiply
    18,620.15x = 25,695.76 × 10,122.27
  4. Step 4: Simplify right side
    18,620.15x = 260,099,289.42
  5. Step 5: Solve for x
    x = 260,099,289.42/18,620.15
  6. Step 6: Final answer
    x = 13,968.70

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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.