Home / 12,209.15-16,850.18-6,903.86

Finding the Fourth Proportional to 12,209.15, 16,850.18 and 6,903.86

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Solution

The fourth proportional to 12,209.15, 16,850.18 and 6,903.86 is: 9,528.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,209.15 : 16,850.18 = 6,903.86 : x
  2. Step 2: Convert to fraction form
    12,209.15/16,850.18 = 6,903.86/x
  3. Step 3: Cross multiply
    12,209.15x = 16,850.18 × 6,903.86
  4. Step 4: Simplify right side
    12,209.15x = 116,331,164.92
  5. Step 5: Solve for x
    x = 116,331,164.92/12,209.15
  6. Step 6: Final answer
    x = 9,528.20

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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.