Home / 11,933.78-16,468.14-6,628.93

Finding the Fourth Proportional to 11,933.78, 16,468.14 and 6,628.93

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Solution

The fourth proportional to 11,933.78, 16,468.14 and 6,628.93 is: 9,147.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,933.78 : 16,468.14 = 6,628.93 : x
  2. Step 2: Convert to fraction form
    11,933.78/16,468.14 = 6,628.93/x
  3. Step 3: Cross multiply
    11,933.78x = 16,468.14 × 6,628.93
  4. Step 4: Simplify right side
    11,933.78x = 109,166,106.12
  5. Step 5: Solve for x
    x = 109,166,106.12/11,933.78
  6. Step 6: Final answer
    x = 9,147.66

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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.