Home / 13,169.08-19,761.70-11,938.68

Finding the Fourth Proportional to 13,169.08, 19,761.70 and 11,938.68

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Solution

The fourth proportional to 13,169.08, 19,761.70 and 11,938.68 is: 17,915.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,169.08 : 19,761.70 = 11,938.68 : x
  2. Step 2: Convert to fraction form
    13,169.08/19,761.70 = 11,938.68/x
  3. Step 3: Cross multiply
    13,169.08x = 19,761.70 × 11,938.68
  4. Step 4: Simplify right side
    13,169.08x = 235,928,612.56
  5. Step 5: Solve for x
    x = 235,928,612.56/13,169.08
  6. Step 6: Final answer
    x = 17,915.35

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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.