Home / 13,272.73-19,905.88-3,910.20

Finding the Fourth Proportional to 13,272.73, 19,905.88 and 3,910.20

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Solution

The fourth proportional to 13,272.73, 19,905.88 and 3,910.20 is: 5,864.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,272.73 : 19,905.88 = 3,910.20 : x
  2. Step 2: Convert to fraction form
    13,272.73/19,905.88 = 3,910.20/x
  3. Step 3: Cross multiply
    13,272.73x = 19,905.88 × 3,910.20
  4. Step 4: Simplify right side
    13,272.73x = 77,835,971.98
  5. Step 5: Solve for x
    x = 77,835,971.98/13,272.73
  6. Step 6: Final answer
    x = 5,864.35

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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.