Home / 13,211.13-19,816.65-3,350.39

Finding the Fourth Proportional to 13,211.13, 19,816.65 and 3,350.39

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Solution

The fourth proportional to 13,211.13, 19,816.65 and 3,350.39 is: 5,025.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,211.13 : 19,816.65 = 3,350.39 : x
  2. Step 2: Convert to fraction form
    13,211.13/19,816.65 = 3,350.39/x
  3. Step 3: Cross multiply
    13,211.13x = 19,816.65 × 3,350.39
  4. Step 4: Simplify right side
    13,211.13x = 66,393,415.29
  5. Step 5: Solve for x
    x = 66,393,415.29/13,211.13
  6. Step 6: Final answer
    x = 5,025.57

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1.5x scale

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.