Home / 13,974.15-20,961.57-5,207.32

Finding the Fourth Proportional to 13,974.15, 20,961.57 and 5,207.32

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Solution

The fourth proportional to 13,974.15, 20,961.57 and 5,207.32 is: 7,811.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,974.15 : 20,961.57 = 5,207.32 : x
  2. Step 2: Convert to fraction form
    13,974.15/20,961.57 = 5,207.32/x
  3. Step 3: Cross multiply
    13,974.15x = 20,961.57 × 5,207.32
  4. Step 4: Simplify right side
    13,974.15x = 109,153,497.88
  5. Step 5: Solve for x
    x = 109,153,497.88/13,974.15
  6. Step 6: Final answer
    x = 7,811.10

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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.