Home / 13,080.24-19,621.32-5,288.88

Finding the Fourth Proportional to 13,080.24, 19,621.32 and 5,288.88

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Solution

The fourth proportional to 13,080.24, 19,621.32 and 5,288.88 is: 7,933.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080.24 : 19,621.32 = 5,288.88 : x
  2. Step 2: Convert to fraction form
    13,080.24/19,621.32 = 5,288.88/x
  3. Step 3: Cross multiply
    13,080.24x = 19,621.32 × 5,288.88
  4. Step 4: Simplify right side
    13,080.24x = 103,774,806.92
  5. Step 5: Solve for x
    x = 103,774,806.92/13,080.24
  6. Step 6: Final answer
    x = 7,933.71

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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.