Home / 11,155.44-15,394.53-6,309.90

Finding the Fourth Proportional to 11,155.44, 15,394.53 and 6,309.90

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Solution

The fourth proportional to 11,155.44, 15,394.53 and 6,309.90 is: 8,707.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,155.44 : 15,394.53 = 6,309.90 : x
  2. Step 2: Convert to fraction form
    11,155.44/15,394.53 = 6,309.90/x
  3. Step 3: Cross multiply
    11,155.44x = 15,394.53 × 6,309.90
  4. Step 4: Simplify right side
    11,155.44x = 97,137,944.85
  5. Step 5: Solve for x
    x = 97,137,944.85/11,155.44
  6. Step 6: Final answer
    x = 8,707.67

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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.