Home / 8,128.44-12,177.10-4,831.52

Finding the Fourth Proportional to 8,128.44, 12,177.10 and 4,831.52

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Solution

The fourth proportional to 8,128.44, 12,177.10 and 4,831.52 is: 7,238.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,128.44 : 12,177.10 = 4,831.52 : x
  2. Step 2: Convert to fraction form
    8,128.44/12,177.10 = 4,831.52/x
  3. Step 3: Cross multiply
    8,128.44x = 12,177.10 × 4,831.52
  4. Step 4: Simplify right side
    8,128.44x = 58,833,902.19
  5. Step 5: Solve for x
    x = 58,833,902.19/8,128.44
  6. Step 6: Final answer
    x = 7,238.03

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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.