Home / 11,113.39-15,331.34-6,394.94

Finding the Fourth Proportional to 11,113.39, 15,331.34 and 6,394.94

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Solution

The fourth proportional to 11,113.39, 15,331.34 and 6,394.94 is: 8,822.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.39 : 15,331.34 = 6,394.94 : x
  2. Step 2: Convert to fraction form
    11,113.39/15,331.34 = 6,394.94/x
  3. Step 3: Cross multiply
    11,113.39x = 15,331.34 × 6,394.94
  4. Step 4: Simplify right side
    11,113.39x = 98,042,999.42
  5. Step 5: Solve for x
    x = 98,042,999.42/11,113.39
  6. Step 6: Final answer
    x = 8,822.06

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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.