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Finding the Fourth Proportional to 15,305.40, 22,982.40 and 10,396.80

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Solution

The fourth proportional to 15,305.40, 22,982.40 and 10,396.80 is: 15,611.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,305.40 : 22,982.40 = 10,396.80 : x
  2. Step 2: Convert to fraction form
    15,305.40/22,982.40 = 10,396.80/x
  3. Step 3: Cross multiply
    15,305.40x = 22,982.40 × 10,396.80
  4. Step 4: Simplify right side
    15,305.40x = 238,943,416.32
  5. Step 5: Solve for x
    x = 238,943,416.32/15,305.40
  6. Step 6: Final answer
    x = 15,611.71

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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.