Home / 13,206.98-19,810.47-3,211.73

Finding the Fourth Proportional to 13,206.98, 19,810.47 and 3,211.73

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Solution

The fourth proportional to 13,206.98, 19,810.47 and 3,211.73 is: 4,817.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.98 : 19,810.47 = 3,211.73 : x
  2. Step 2: Convert to fraction form
    13,206.98/19,810.47 = 3,211.73/x
  3. Step 3: Cross multiply
    13,206.98x = 19,810.47 × 3,211.73
  4. Step 4: Simplify right side
    13,206.98x = 63,625,781.76
  5. Step 5: Solve for x
    x = 63,625,781.76/13,206.98
  6. Step 6: Final answer
    x = 4,817.59

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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.