Home / 13,927.32-20,890.98-5,151.96

Finding the Fourth Proportional to 13,927.32, 20,890.98 and 5,151.96

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Solution

The fourth proportional to 13,927.32, 20,890.98 and 5,151.96 is: 7,727.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,927.32 : 20,890.98 = 5,151.96 : x
  2. Step 2: Convert to fraction form
    13,927.32/20,890.98 = 5,151.96/x
  3. Step 3: Cross multiply
    13,927.32x = 20,890.98 × 5,151.96
  4. Step 4: Simplify right side
    13,927.32x = 107,629,493.32
  5. Step 5: Solve for x
    x = 107,629,493.32/13,927.32
  6. Step 6: Final answer
    x = 7,727.94

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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.