Home / 11,111.67-15,333.34-6,331

Finding the Fourth Proportional to 11,111.67, 15,333.34 and 6,331

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Solution

The fourth proportional to 11,111.67, 15,333.34 and 6,331 is: 8,736.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,111.67 : 15,333.34 = 6,331 : x
  2. Step 2: Convert to fraction form
    11,111.67/15,333.34 = 6,331/x
  3. Step 3: Cross multiply
    11,111.67x = 15,333.34 × 6,331
  4. Step 4: Simplify right side
    11,111.67x = 97,075,375.54
  5. Step 5: Solve for x
    x = 97,075,375.54/11,111.67
  6. Step 6: Final answer
    x = 8,736.34

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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.