Home / 13,211.08-19,789.74-11,040.20

Finding the Fourth Proportional to 13,211.08, 19,789.74 and 11,040.20

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Solution

The fourth proportional to 13,211.08, 19,789.74 and 11,040.20 is: 16,537.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,211.08 : 19,789.74 = 11,040.20 : x
  2. Step 2: Convert to fraction form
    13,211.08/19,789.74 = 11,040.20/x
  3. Step 3: Cross multiply
    13,211.08x = 19,789.74 × 11,040.20
  4. Step 4: Simplify right side
    13,211.08x = 218,482,687.55
  5. Step 5: Solve for x
    x = 218,482,687.55/13,211.08
  6. Step 6: Final answer
    x = 16,537.84

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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.