Home / 12,553.95-18,831.65-3,789.75

Finding the Fourth Proportional to 12,553.95, 18,831.65 and 3,789.75

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Solution

The fourth proportional to 12,553.95, 18,831.65 and 3,789.75 is: 5,684.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.95 : 18,831.65 = 3,789.75 : x
  2. Step 2: Convert to fraction form
    12,553.95/18,831.65 = 3,789.75/x
  3. Step 3: Cross multiply
    12,553.95x = 18,831.65 × 3,789.75
  4. Step 4: Simplify right side
    12,553.95x = 71,367,226.64
  5. Step 5: Solve for x
    x = 71,367,226.64/12,553.95
  6. Step 6: Final answer
    x = 5,684.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.