Home / 13,390.86-20,091.16-4,626.66

Finding the Fourth Proportional to 13,390.86, 20,091.16 and 4,626.66

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Solution

The fourth proportional to 13,390.86, 20,091.16 and 4,626.66 is: 6,941.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390.86 : 20,091.16 = 4,626.66 : x
  2. Step 2: Convert to fraction form
    13,390.86/20,091.16 = 4,626.66/x
  3. Step 3: Cross multiply
    13,390.86x = 20,091.16 × 4,626.66
  4. Step 4: Simplify right side
    13,390.86x = 92,954,966.33
  5. Step 5: Solve for x
    x = 92,954,966.33/13,390.86
  6. Step 6: Final answer
    x = 6,941.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.