Home / 12,554.52-18,831.29-3,789.20

Finding the Fourth Proportional to 12,554.52, 18,831.29 and 3,789.20

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Solution

The fourth proportional to 12,554.52, 18,831.29 and 3,789.20 is: 5,683.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,554.52 : 18,831.29 = 3,789.20 : x
  2. Step 2: Convert to fraction form
    12,554.52/18,831.29 = 3,789.20/x
  3. Step 3: Cross multiply
    12,554.52x = 18,831.29 × 3,789.20
  4. Step 4: Simplify right side
    12,554.52x = 71,355,410.97
  5. Step 5: Solve for x
    x = 71,355,410.97/12,554.52
  6. Step 6: Final answer
    x = 5,683.64

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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.