Home / 15,351.62-21,185.03-8,982.59

Finding the Fourth Proportional to 15,351.62, 21,185.03 and 8,982.59

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Solution

The fourth proportional to 15,351.62, 21,185.03 and 8,982.59 is: 12,395.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,351.62 : 21,185.03 = 8,982.59 : x
  2. Step 2: Convert to fraction form
    15,351.62/21,185.03 = 8,982.59/x
  3. Step 3: Cross multiply
    15,351.62x = 21,185.03 × 8,982.59
  4. Step 4: Simplify right side
    15,351.62x = 190,296,393.71
  5. Step 5: Solve for x
    x = 190,296,393.71/15,351.62
  6. Step 6: Final answer
    x = 12,395.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.