Home / 11,455.05-15,807.22-6,738.42

Finding the Fourth Proportional to 11,455.05, 15,807.22 and 6,738.42

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Solution

The fourth proportional to 11,455.05, 15,807.22 and 6,738.42 is: 9,298.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,455.05 : 15,807.22 = 6,738.42 : x
  2. Step 2: Convert to fraction form
    11,455.05/15,807.22 = 6,738.42/x
  3. Step 3: Cross multiply
    11,455.05x = 15,807.22 × 6,738.42
  4. Step 4: Simplify right side
    11,455.05x = 106,515,687.39
  5. Step 5: Solve for x
    x = 106,515,687.39/11,455.05
  6. Step 6: Final answer
    x = 9,298.58

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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.