Home / 13,281.12-19,933.98-6,711.90

Finding the Fourth Proportional to 13,281.12, 19,933.98 and 6,711.90

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Solution

The fourth proportional to 13,281.12, 19,933.98 and 6,711.90 is: 10,074.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,281.12 : 19,933.98 = 6,711.90 : x
  2. Step 2: Convert to fraction form
    13,281.12/19,933.98 = 6,711.90/x
  3. Step 3: Cross multiply
    13,281.12x = 19,933.98 × 6,711.90
  4. Step 4: Simplify right side
    13,281.12x = 133,794,880.36
  5. Step 5: Solve for x
    x = 133,794,880.36/13,281.12
  6. Step 6: Final answer
    x = 10,074.07

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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.