Home / 13,314.87-19,969.57-6,291.90

Finding the Fourth Proportional to 13,314.87, 19,969.57 and 6,291.90

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Solution

The fourth proportional to 13,314.87, 19,969.57 and 6,291.90 is: 9,436.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,314.87 : 19,969.57 = 6,291.90 : x
  2. Step 2: Convert to fraction form
    13,314.87/19,969.57 = 6,291.90/x
  3. Step 3: Cross multiply
    13,314.87x = 19,969.57 × 6,291.90
  4. Step 4: Simplify right side
    13,314.87x = 125,646,537.48
  5. Step 5: Solve for x
    x = 125,646,537.48/13,314.87
  6. Step 6: Final answer
    x = 9,436.56

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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.