Home / 12,831.39-19,243.23-4,509.85

Finding the Fourth Proportional to 12,831.39, 19,243.23 and 4,509.85

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Solution

The fourth proportional to 12,831.39, 19,243.23 and 4,509.85 is: 6,763.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,831.39 : 19,243.23 = 4,509.85 : x
  2. Step 2: Convert to fraction form
    12,831.39/19,243.23 = 4,509.85/x
  3. Step 3: Cross multiply
    12,831.39x = 19,243.23 × 4,509.85
  4. Step 4: Simplify right side
    12,831.39x = 86,784,080.82
  5. Step 5: Solve for x
    x = 86,784,080.82/12,831.39
  6. Step 6: Final answer
    x = 6,763.42

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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.