Home / 13,795.32-20,687.38-6,778.36

Finding the Fourth Proportional to 13,795.32, 20,687.38 and 6,778.36

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Solution

The fourth proportional to 13,795.32, 20,687.38 and 6,778.36 is: 10,164.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,795.32 : 20,687.38 = 6,778.36 : x
  2. Step 2: Convert to fraction form
    13,795.32/20,687.38 = 6,778.36/x
  3. Step 3: Cross multiply
    13,795.32x = 20,687.38 × 6,778.36
  4. Step 4: Simplify right side
    13,795.32x = 140,226,509.10
  5. Step 5: Solve for x
    x = 140,226,509.10/13,795.32
  6. Step 6: Final answer
    x = 10,164.79

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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.