Home / 11,367.12-15,687.41-6,891.06

Finding the Fourth Proportional to 11,367.12, 15,687.41 and 6,891.06

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Solution

The fourth proportional to 11,367.12, 15,687.41 and 6,891.06 is: 9,510.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,367.12 : 15,687.41 = 6,891.06 : x
  2. Step 2: Convert to fraction form
    11,367.12/15,687.41 = 6,891.06/x
  3. Step 3: Cross multiply
    11,367.12x = 15,687.41 × 6,891.06
  4. Step 4: Simplify right side
    11,367.12x = 108,102,844.34
  5. Step 5: Solve for x
    x = 108,102,844.34/11,367.12
  6. Step 6: Final answer
    x = 9,510.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.