Home / 13,199.85-19,778.94-4,868.40

Finding the Fourth Proportional to 13,199.85, 19,778.94 and 4,868.40

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Solution

The fourth proportional to 13,199.85, 19,778.94 and 4,868.40 is: 7,294.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,199.85 : 19,778.94 = 4,868.40 : x
  2. Step 2: Convert to fraction form
    13,199.85/19,778.94 = 4,868.40/x
  3. Step 3: Cross multiply
    13,199.85x = 19,778.94 × 4,868.40
  4. Step 4: Simplify right side
    13,199.85x = 96,291,791.50
  5. Step 5: Solve for x
    x = 96,291,791.50/13,199.85
  6. Step 6: Final answer
    x = 7,294.92

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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.