Home / 11,220.86-16,831.56-5,371.04

Finding the Fourth Proportional to 11,220.86, 16,831.56 and 5,371.04

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Solution

The fourth proportional to 11,220.86, 16,831.56 and 5,371.04 is: 8,056.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.86 : 16,831.56 = 5,371.04 : x
  2. Step 2: Convert to fraction form
    11,220.86/16,831.56 = 5,371.04/x
  3. Step 3: Cross multiply
    11,220.86x = 16,831.56 × 5,371.04
  4. Step 4: Simplify right side
    11,220.86x = 90,402,897.86
  5. Step 5: Solve for x
    x = 90,402,897.86/11,220.86
  6. Step 6: Final answer
    x = 8,056.69

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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.