Home / 10,275.31-15,395.28-6,936.21

Finding the Fourth Proportional to 10,275.31, 15,395.28 and 6,936.21

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Solution

The fourth proportional to 10,275.31, 15,395.28 and 6,936.21 is: 10,392.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,275.31 : 15,395.28 = 6,936.21 : x
  2. Step 2: Convert to fraction form
    10,275.31/15,395.28 = 6,936.21/x
  3. Step 3: Cross multiply
    10,275.31x = 15,395.28 × 6,936.21
  4. Step 4: Simplify right side
    10,275.31x = 106,784,879.43
  5. Step 5: Solve for x
    x = 106,784,879.43/10,275.31
  6. Step 6: Final answer
    x = 10,392.37

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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.