Home / 11,091.87-15,308.10-6,376.05

Finding the Fourth Proportional to 11,091.87, 15,308.10 and 6,376.05

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Solution

The fourth proportional to 11,091.87, 15,308.10 and 6,376.05 is: 8,799.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,091.87 : 15,308.10 = 6,376.05 : x
  2. Step 2: Convert to fraction form
    11,091.87/15,308.10 = 6,376.05/x
  3. Step 3: Cross multiply
    11,091.87x = 15,308.10 × 6,376.05
  4. Step 4: Simplify right side
    11,091.87x = 97,605,211.01
  5. Step 5: Solve for x
    x = 97,605,211.01/11,091.87
  6. Step 6: Final answer
    x = 8,799.71

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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.