Home / 12,831.28-19,245.04-3,471.84

Finding the Fourth Proportional to 12,831.28, 19,245.04 and 3,471.84

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Solution

The fourth proportional to 12,831.28, 19,245.04 and 3,471.84 is: 5,207.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,831.28 : 19,245.04 = 3,471.84 : x
  2. Step 2: Convert to fraction form
    12,831.28/19,245.04 = 3,471.84/x
  3. Step 3: Cross multiply
    12,831.28x = 19,245.04 × 3,471.84
  4. Step 4: Simplify right side
    12,831.28x = 66,815,699.67
  5. Step 5: Solve for x
    x = 66,815,699.67/12,831.28
  6. Step 6: Final answer
    x = 5,207.25

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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.