Home / 11,618.65-17,415.79-5,687.36

Finding the Fourth Proportional to 11,618.65, 17,415.79 and 5,687.36

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Solution

The fourth proportional to 11,618.65, 17,415.79 and 5,687.36 is: 8,525.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,618.65 : 17,415.79 = 5,687.36 : x
  2. Step 2: Convert to fraction form
    11,618.65/17,415.79 = 5,687.36/x
  3. Step 3: Cross multiply
    11,618.65x = 17,415.79 × 5,687.36
  4. Step 4: Simplify right side
    11,618.65x = 99,049,867.41
  5. Step 5: Solve for x
    x = 99,049,867.41/11,618.65
  6. Step 6: Final answer
    x = 8,525.08

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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.