Home / 12,831.68-19,249.28-4,509.79

Finding the Fourth Proportional to 12,831.68, 19,249.28 and 4,509.79

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Solution

The fourth proportional to 12,831.68, 19,249.28 and 4,509.79 is: 6,765.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,831.68 : 19,249.28 = 4,509.79 : x
  2. Step 2: Convert to fraction form
    12,831.68/19,249.28 = 4,509.79/x
  3. Step 3: Cross multiply
    12,831.68x = 19,249.28 × 4,509.79
  4. Step 4: Simplify right side
    12,831.68x = 86,810,264.97
  5. Step 5: Solve for x
    x = 86,810,264.97/12,831.68
  6. Step 6: Final answer
    x = 6,765.31

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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.