Home / 11,913.78-16,441.44-7,197.14

Finding the Fourth Proportional to 11,913.78, 16,441.44 and 7,197.14

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Solution

The fourth proportional to 11,913.78, 16,441.44 and 7,197.14 is: 9,932.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,913.78 : 16,441.44 = 7,197.14 : x
  2. Step 2: Convert to fraction form
    11,913.78/16,441.44 = 7,197.14/x
  3. Step 3: Cross multiply
    11,913.78x = 16,441.44 × 7,197.14
  4. Step 4: Simplify right side
    11,913.78x = 118,331,345.48
  5. Step 5: Solve for x
    x = 118,331,345.48/11,913.78
  6. Step 6: Final answer
    x = 9,932.31

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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.