Home / 15,453.27-21,325.50-8,379.66

Finding the Fourth Proportional to 15,453.27, 21,325.50 and 8,379.66

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Solution

The fourth proportional to 15,453.27, 21,325.50 and 8,379.66 is: 11,563.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,453.27 : 21,325.50 = 8,379.66 : x
  2. Step 2: Convert to fraction form
    15,453.27/21,325.50 = 8,379.66/x
  3. Step 3: Cross multiply
    15,453.27x = 21,325.50 × 8,379.66
  4. Step 4: Simplify right side
    15,453.27x = 178,700,439.33
  5. Step 5: Solve for x
    x = 178,700,439.33/15,453.27
  6. Step 6: Final answer
    x = 11,563.92

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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.