Home / 13,240.39-19,842.56-6,671.09

Finding the Fourth Proportional to 13,240.39, 19,842.56 and 6,671.09

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Solution

The fourth proportional to 13,240.39, 19,842.56 and 6,671.09 is: 9,997.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.39 : 19,842.56 = 6,671.09 : x
  2. Step 2: Convert to fraction form
    13,240.39/19,842.56 = 6,671.09/x
  3. Step 3: Cross multiply
    13,240.39x = 19,842.56 × 6,671.09
  4. Step 4: Simplify right side
    13,240.39x = 132,371,396.04
  5. Step 5: Solve for x
    x = 132,371,396.04/13,240.39
  6. Step 6: Final answer
    x = 9,997.55

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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.