Home / 11,919.01-16,454.35-8,397.94

Finding the Fourth Proportional to 11,919.01, 16,454.35 and 8,397.94

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Solution

The fourth proportional to 11,919.01, 16,454.35 and 8,397.94 is: 11,593.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,919.01 : 16,454.35 = 8,397.94 : x
  2. Step 2: Convert to fraction form
    11,919.01/16,454.35 = 8,397.94/x
  3. Step 3: Cross multiply
    11,919.01x = 16,454.35 × 8,397.94
  4. Step 4: Simplify right side
    11,919.01x = 138,182,621.59
  5. Step 5: Solve for x
    x = 138,182,621.59/11,919.01
  6. Step 6: Final answer
    x = 11,593.47

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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.