Home / 13,003.67-19,505.51-3,142.95

Finding the Fourth Proportional to 13,003.67, 19,505.51 and 3,142.95

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Solution

The fourth proportional to 13,003.67, 19,505.51 and 3,142.95 is: 4,714.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,003.67 : 19,505.51 = 3,142.95 : x
  2. Step 2: Convert to fraction form
    13,003.67/19,505.51 = 3,142.95/x
  3. Step 3: Cross multiply
    13,003.67x = 19,505.51 × 3,142.95
  4. Step 4: Simplify right side
    13,003.67x = 61,304,759.69
  5. Step 5: Solve for x
    x = 61,304,759.69/13,003.67
  6. Step 6: Final answer
    x = 4,714.42

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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.