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Finding the Fourth Proportional to 14,801.03, 20,422.05 and 8,831.54

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Solution

The fourth proportional to 14,801.03, 20,422.05 and 8,831.54 is: 12,185.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,801.03 : 20,422.05 = 8,831.54 : x
  2. Step 2: Convert to fraction form
    14,801.03/20,422.05 = 8,831.54/x
  3. Step 3: Cross multiply
    14,801.03x = 20,422.05 × 8,831.54
  4. Step 4: Simplify right side
    14,801.03x = 180,358,049.35
  5. Step 5: Solve for x
    x = 180,358,049.35/14,801.03
  6. Step 6: Final answer
    x = 12,185.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.