Home / 15,424.41-21,285.84-8,350.98

Finding the Fourth Proportional to 15,424.41, 21,285.84 and 8,350.98

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Solution

The fourth proportional to 15,424.41, 21,285.84 and 8,350.98 is: 11,524.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,424.41 : 21,285.84 = 8,350.98 : x
  2. Step 2: Convert to fraction form
    15,424.41/21,285.84 = 8,350.98/x
  3. Step 3: Cross multiply
    15,424.41x = 21,285.84 × 8,350.98
  4. Step 4: Simplify right side
    15,424.41x = 177,757,624.12
  5. Step 5: Solve for x
    x = 177,757,624.12/15,424.41
  6. Step 6: Final answer
    x = 11,524.44

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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.