Home / 13,132.20-19,712.70-7,285.80

Finding the Fourth Proportional to 13,132.20, 19,712.70 and 7,285.80

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Solution

The fourth proportional to 13,132.20, 19,712.70 and 7,285.80 is: 10,936.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132.20 : 19,712.70 = 7,285.80 : x
  2. Step 2: Convert to fraction form
    13,132.20/19,712.70 = 7,285.80/x
  3. Step 3: Cross multiply
    13,132.20x = 19,712.70 × 7,285.80
  4. Step 4: Simplify right side
    13,132.20x = 143,622,789.66
  5. Step 5: Solve for x
    x = 143,622,789.66/13,132.20
  6. Step 6: Final answer
    x = 10,936.69

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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.