Home / 11,919.47-16,448.94-6,614.15

Finding the Fourth Proportional to 11,919.47, 16,448.94 and 6,614.15

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Solution

The fourth proportional to 11,919.47, 16,448.94 and 6,614.15 is: 9,127.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,919.47 : 16,448.94 = 6,614.15 : x
  2. Step 2: Convert to fraction form
    11,919.47/16,448.94 = 6,614.15/x
  3. Step 3: Cross multiply
    11,919.47x = 16,448.94 × 6,614.15
  4. Step 4: Simplify right side
    11,919.47x = 108,795,674.26
  5. Step 5: Solve for x
    x = 108,795,674.26/11,919.47
  6. Step 6: Final answer
    x = 9,127.56

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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.