Home / 15,453.91-21,327.72-8,740.73

Finding the Fourth Proportional to 15,453.91, 21,327.72 and 8,740.73

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Solution

The fourth proportional to 15,453.91, 21,327.72 and 8,740.73 is: 12,062.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,453.91 : 21,327.72 = 8,740.73 : x
  2. Step 2: Convert to fraction form
    15,453.91/21,327.72 = 8,740.73/x
  3. Step 3: Cross multiply
    15,453.91x = 21,327.72 × 8,740.73
  4. Step 4: Simplify right side
    15,453.91x = 186,419,798.33
  5. Step 5: Solve for x
    x = 186,419,798.33/15,453.91
  6. Step 6: Final answer
    x = 12,062.95

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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.