Home / 11,222.78-15,486.75-6,187.22

Finding the Fourth Proportional to 11,222.78, 15,486.75 and 6,187.22

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Solution

The fourth proportional to 11,222.78, 15,486.75 and 6,187.22 is: 8,537.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,222.78 : 15,486.75 = 6,187.22 : x
  2. Step 2: Convert to fraction form
    11,222.78/15,486.75 = 6,187.22/x
  3. Step 3: Cross multiply
    11,222.78x = 15,486.75 × 6,187.22
  4. Step 4: Simplify right side
    11,222.78x = 95,819,851.90
  5. Step 5: Solve for x
    x = 95,819,851.90/11,222.78
  6. Step 6: Final answer
    x = 8,537.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.