Home / 11,111.67-15,334.11-6,331.48

Finding the Fourth Proportional to 11,111.67, 15,334.11 and 6,331.48

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Solution

The fourth proportional to 11,111.67, 15,334.11 and 6,331.48 is: 8,737.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,111.67 : 15,334.11 = 6,331.48 : x
  2. Step 2: Convert to fraction form
    11,111.67/15,334.11 = 6,331.48/x
  3. Step 3: Cross multiply
    11,111.67x = 15,334.11 × 6,331.48
  4. Step 4: Simplify right side
    11,111.67x = 97,087,572.45
  5. Step 5: Solve for x
    x = 97,087,572.45/11,111.67
  6. Step 6: Final answer
    x = 8,737.44

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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.