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Finding the Fourth Proportional to 15,869.60, 23,794.83 and 8,379.13

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Solution

The fourth proportional to 15,869.60, 23,794.83 and 8,379.13 is: 12,563.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,869.60 : 23,794.83 = 8,379.13 : x
  2. Step 2: Convert to fraction form
    15,869.60/23,794.83 = 8,379.13/x
  3. Step 3: Cross multiply
    15,869.60x = 23,794.83 × 8,379.13
  4. Step 4: Simplify right side
    15,869.60x = 199,379,854.92
  5. Step 5: Solve for x
    x = 199,379,854.92/15,869.60
  6. Step 6: Final answer
    x = 12,563.63

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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.