Home / 15,361.18-21,198.45-9,074.86

Finding the Fourth Proportional to 15,361.18, 21,198.45 and 9,074.86

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Solution

The fourth proportional to 15,361.18, 21,198.45 and 9,074.86 is: 12,523.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,361.18 : 21,198.45 = 9,074.86 : x
  2. Step 2: Convert to fraction form
    15,361.18/21,198.45 = 9,074.86/x
  3. Step 3: Cross multiply
    15,361.18x = 21,198.45 × 9,074.86
  4. Step 4: Simplify right side
    15,361.18x = 192,372,965.97
  5. Step 5: Solve for x
    x = 192,372,965.97/15,361.18
  6. Step 6: Final answer
    x = 12,523.32

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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.