Home / 10,260.80-15,390.88-3,687.36

Finding the Fourth Proportional to 10,260.80, 15,390.88 and 3,687.36

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Solution

The fourth proportional to 10,260.80, 15,390.88 and 3,687.36 is: 5,530.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,260.80 : 15,390.88 = 3,687.36 : x
  2. Step 2: Convert to fraction form
    10,260.80/15,390.88 = 3,687.36/x
  3. Step 3: Cross multiply
    10,260.80x = 15,390.88 × 3,687.36
  4. Step 4: Simplify right side
    10,260.80x = 56,751,715.28
  5. Step 5: Solve for x
    x = 56,751,715.28/10,260.80
  6. Step 6: Final answer
    x = 5,530.93

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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.