Home / 11,117.90-16,672.80-3,722.60

Finding the Fourth Proportional to 11,117.90, 16,672.80 and 3,722.60

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Solution

The fourth proportional to 11,117.90, 16,672.80 and 3,722.60 is: 5,582.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,117.90 : 16,672.80 = 3,722.60 : x
  2. Step 2: Convert to fraction form
    11,117.90/16,672.80 = 3,722.60/x
  3. Step 3: Cross multiply
    11,117.90x = 16,672.80 × 3,722.60
  4. Step 4: Simplify right side
    11,117.90x = 62,066,165.28
  5. Step 5: Solve for x
    x = 62,066,165.28/11,117.90
  6. Step 6: Final answer
    x = 5,582.54

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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.