Home / 14,831.12-20,466.06-8,115.50

Finding the Fourth Proportional to 14,831.12, 20,466.06 and 8,115.50

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Solution

The fourth proportional to 14,831.12, 20,466.06 and 8,115.50 is: 11,198.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,831.12 : 20,466.06 = 8,115.50 : x
  2. Step 2: Convert to fraction form
    14,831.12/20,466.06 = 8,115.50/x
  3. Step 3: Cross multiply
    14,831.12x = 20,466.06 × 8,115.50
  4. Step 4: Simplify right side
    14,831.12x = 166,092,309.93
  5. Step 5: Solve for x
    x = 166,092,309.93/14,831.12
  6. Step 6: Final answer
    x = 11,198.91

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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.