Home / 13,195.80-19,776.78-5,395.32

Finding the Fourth Proportional to 13,195.80, 19,776.78 and 5,395.32

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Solution

The fourth proportional to 13,195.80, 19,776.78 and 5,395.32 is: 8,086.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.80 : 19,776.78 = 5,395.32 : x
  2. Step 2: Convert to fraction form
    13,195.80/19,776.78 = 5,395.32/x
  3. Step 3: Cross multiply
    13,195.80x = 19,776.78 × 5,395.32
  4. Step 4: Simplify right side
    13,195.80x = 106,702,056.67
  5. Step 5: Solve for x
    x = 106,702,056.67/13,195.80
  6. Step 6: Final answer
    x = 8,086.06

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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.