Home / 12,553.54-18,831.88-3,788.44

Finding the Fourth Proportional to 12,553.54, 18,831.88 and 3,788.44

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Solution

The fourth proportional to 12,553.54, 18,831.88 and 3,788.44 is: 5,683.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.54 : 18,831.88 = 3,788.44 : x
  2. Step 2: Convert to fraction form
    12,553.54/18,831.88 = 3,788.44/x
  3. Step 3: Cross multiply
    12,553.54x = 18,831.88 × 3,788.44
  4. Step 4: Simplify right side
    12,553.54x = 71,343,447.47
  5. Step 5: Solve for x
    x = 71,343,447.47/12,553.54
  6. Step 6: Final answer
    x = 5,683.13

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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.