Home / 11,531.22-15,913.26-6,815.94

Finding the Fourth Proportional to 11,531.22, 15,913.26 and 6,815.94

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Solution

The fourth proportional to 11,531.22, 15,913.26 and 6,815.94 is: 9,406.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,531.22 : 15,913.26 = 6,815.94 : x
  2. Step 2: Convert to fraction form
    11,531.22/15,913.26 = 6,815.94/x
  3. Step 3: Cross multiply
    11,531.22x = 15,913.26 × 6,815.94
  4. Step 4: Simplify right side
    11,531.22x = 108,463,825.36
  5. Step 5: Solve for x
    x = 108,463,825.36/11,531.22
  6. Step 6: Final answer
    x = 9,406.10

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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.