Home / 11,211.96-15,479.96-6,969.36

Finding the Fourth Proportional to 11,211.96, 15,479.96 and 6,969.36

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Solution

The fourth proportional to 11,211.96, 15,479.96 and 6,969.36 is: 9,622.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,211.96 : 15,479.96 = 6,969.36 : x
  2. Step 2: Convert to fraction form
    11,211.96/15,479.96 = 6,969.36/x
  3. Step 3: Cross multiply
    11,211.96x = 15,479.96 × 6,969.36
  4. Step 4: Simplify right side
    11,211.96x = 107,885,414.03
  5. Step 5: Solve for x
    x = 107,885,414.03/11,211.96
  6. Step 6: Final answer
    x = 9,622.35

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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.