Home / 13,284.20-19,928.70-6,693.80

Finding the Fourth Proportional to 13,284.20, 19,928.70 and 6,693.80

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Solution

The fourth proportional to 13,284.20, 19,928.70 and 6,693.80 is: 10,041.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,284.20 : 19,928.70 = 6,693.80 : x
  2. Step 2: Convert to fraction form
    13,284.20/19,928.70 = 6,693.80/x
  3. Step 3: Cross multiply
    13,284.20x = 19,928.70 × 6,693.80
  4. Step 4: Simplify right side
    13,284.20x = 133,398,732.06
  5. Step 5: Solve for x
    x = 133,398,732.06/13,284.20
  6. Step 6: Final answer
    x = 10,041.91

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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.