Home / 12,831.35-19,246.61-3,214.22

Finding the Fourth Proportional to 12,831.35, 19,246.61 and 3,214.22

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Solution

The fourth proportional to 12,831.35, 19,246.61 and 3,214.22 is: 4,821.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,831.35 : 19,246.61 = 3,214.22 : x
  2. Step 2: Convert to fraction form
    12,831.35/19,246.61 = 3,214.22/x
  3. Step 3: Cross multiply
    12,831.35x = 19,246.61 × 3,214.22
  4. Step 4: Simplify right side
    12,831.35x = 61,862,750.60
  5. Step 5: Solve for x
    x = 61,862,750.60/12,831.35
  6. Step 6: Final answer
    x = 4,821.22

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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.