Home / 10,911.31-16,355.32-6,221.22

Finding the Fourth Proportional to 10,911.31, 16,355.32 and 6,221.22

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Solution

The fourth proportional to 10,911.31, 16,355.32 and 6,221.22 is: 9,325.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,911.31 : 16,355.32 = 6,221.22 : x
  2. Step 2: Convert to fraction form
    10,911.31/16,355.32 = 6,221.22/x
  3. Step 3: Cross multiply
    10,911.31x = 16,355.32 × 6,221.22
  4. Step 4: Simplify right side
    10,911.31x = 101,750,043.89
  5. Step 5: Solve for x
    x = 101,750,043.89/10,911.31
  6. Step 6: Final answer
    x = 9,325.19

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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.