Home / 11,220.98-16,831.74-5,371.16

Finding the Fourth Proportional to 11,220.98, 16,831.74 and 5,371.16

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Solution

The fourth proportional to 11,220.98, 16,831.74 and 5,371.16 is: 8,056.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.98 : 16,831.74 = 5,371.16 : x
  2. Step 2: Convert to fraction form
    11,220.98/16,831.74 = 5,371.16/x
  3. Step 3: Cross multiply
    11,220.98x = 16,831.74 × 5,371.16
  4. Step 4: Simplify right side
    11,220.98x = 90,405,968.62
  5. Step 5: Solve for x
    x = 90,405,968.62/11,220.98
  6. Step 6: Final answer
    x = 8,056.87

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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.