Home / 13,211.04-19,816.56-3,351.06

Finding the Fourth Proportional to 13,211.04, 19,816.56 and 3,351.06

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Solution

The fourth proportional to 13,211.04, 19,816.56 and 3,351.06 is: 5,026.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,211.04 : 19,816.56 = 3,351.06 : x
  2. Step 2: Convert to fraction form
    13,211.04/19,816.56 = 3,351.06/x
  3. Step 3: Cross multiply
    13,211.04x = 19,816.56 × 3,351.06
  4. Step 4: Simplify right side
    13,211.04x = 66,406,481.55
  5. Step 5: Solve for x
    x = 66,406,481.55/13,211.04
  6. Step 6: Final answer
    x = 5,026.59

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Double scale
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Similar ratio
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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.