Home / 11,331.45-15,638.40-6,296.67

Finding the Fourth Proportional to 11,331.45, 15,638.40 and 6,296.67

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Solution

The fourth proportional to 11,331.45, 15,638.40 and 6,296.67 is: 8,689.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,331.45 : 15,638.40 = 6,296.67 : x
  2. Step 2: Convert to fraction form
    11,331.45/15,638.40 = 6,296.67/x
  3. Step 3: Cross multiply
    11,331.45x = 15,638.40 × 6,296.67
  4. Step 4: Simplify right side
    11,331.45x = 98,469,844.13
  5. Step 5: Solve for x
    x = 98,469,844.13/11,331.45
  6. Step 6: Final answer
    x = 8,689.96

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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.