Home / 15,314.94-21,132.96-8,601.30

Finding the Fourth Proportional to 15,314.94, 21,132.96 and 8,601.30

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Solution

The fourth proportional to 15,314.94, 21,132.96 and 8,601.30 is: 11,868.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314.94 : 21,132.96 = 8,601.30 : x
  2. Step 2: Convert to fraction form
    15,314.94/21,132.96 = 8,601.30/x
  3. Step 3: Cross multiply
    15,314.94x = 21,132.96 × 8,601.30
  4. Step 4: Simplify right side
    15,314.94x = 181,770,928.85
  5. Step 5: Solve for x
    x = 181,770,928.85/15,314.94
  6. Step 6: Final answer
    x = 11,868.86

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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.