Home / 13,266.05-19,894.85-4,379.72

Finding the Fourth Proportional to 13,266.05, 19,894.85 and 4,379.72

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Solution

The fourth proportional to 13,266.05, 19,894.85 and 4,379.72 is: 6,568.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.05 : 19,894.85 = 4,379.72 : x
  2. Step 2: Convert to fraction form
    13,266.05/19,894.85 = 4,379.72/x
  3. Step 3: Cross multiply
    13,266.05x = 19,894.85 × 4,379.72
  4. Step 4: Simplify right side
    13,266.05x = 87,133,946.97
  5. Step 5: Solve for x
    x = 87,133,946.97/13,266.05
  6. Step 6: Final answer
    x = 6,568.19

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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.