Home / 11,937.12-16,468.32-8,154.20

Finding the Fourth Proportional to 11,937.12, 16,468.32 and 8,154.20

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Solution

The fourth proportional to 11,937.12, 16,468.32 and 8,154.20 is: 11,249.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,937.12 : 16,468.32 = 8,154.20 : x
  2. Step 2: Convert to fraction form
    11,937.12/16,468.32 = 8,154.20/x
  3. Step 3: Cross multiply
    11,937.12x = 16,468.32 × 8,154.20
  4. Step 4: Simplify right side
    11,937.12x = 134,285,974.94
  5. Step 5: Solve for x
    x = 134,285,974.94/11,937.12
  6. Step 6: Final answer
    x = 11,249.45

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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.