Home / 13,240.14-19,860.08-3,379.31

Finding the Fourth Proportional to 13,240.14, 19,860.08 and 3,379.31

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Solution

The fourth proportional to 13,240.14, 19,860.08 and 3,379.31 is: 5,068.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.14 : 19,860.08 = 3,379.31 : x
  2. Step 2: Convert to fraction form
    13,240.14/19,860.08 = 3,379.31/x
  3. Step 3: Cross multiply
    13,240.14x = 19,860.08 × 3,379.31
  4. Step 4: Simplify right side
    13,240.14x = 67,113,399.70
  5. Step 5: Solve for x
    x = 67,113,399.70/13,240.14
  6. Step 6: Final answer
    x = 5,068.93

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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.