Home / 11,919.12-16,448.28-6,884.40

Finding the Fourth Proportional to 11,919.12, 16,448.28 and 6,884.40

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Solution

The fourth proportional to 11,919.12, 16,448.28 and 6,884.40 is: 9,500.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,919.12 : 16,448.28 = 6,884.40 : x
  2. Step 2: Convert to fraction form
    11,919.12/16,448.28 = 6,884.40/x
  3. Step 3: Cross multiply
    11,919.12x = 16,448.28 × 6,884.40
  4. Step 4: Simplify right side
    11,919.12x = 113,236,538.83
  5. Step 5: Solve for x
    x = 113,236,538.83/11,919.12
  6. Step 6: Final answer
    x = 9,500.41

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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.