Home / 12,261.68-16,920.87-6,884.24

Finding the Fourth Proportional to 12,261.68, 16,920.87 and 6,884.24

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Solution

The fourth proportional to 12,261.68, 16,920.87 and 6,884.24 is: 9,500.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,261.68 : 16,920.87 = 6,884.24 : x
  2. Step 2: Convert to fraction form
    12,261.68/16,920.87 = 6,884.24/x
  3. Step 3: Cross multiply
    12,261.68x = 16,920.87 × 6,884.24
  4. Step 4: Simplify right side
    12,261.68x = 116,487,314.85
  5. Step 5: Solve for x
    x = 116,487,314.85/12,261.68
  6. Step 6: Final answer
    x = 9,500.11

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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.