Home / 12,170.92-18,259.42-6,622.76

Finding the Fourth Proportional to 12,170.92, 18,259.42 and 6,622.76

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Solution

The fourth proportional to 12,170.92, 18,259.42 and 6,622.76 is: 9,935.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,170.92 : 18,259.42 = 6,622.76 : x
  2. Step 2: Convert to fraction form
    12,170.92/18,259.42 = 6,622.76/x
  3. Step 3: Cross multiply
    12,170.92x = 18,259.42 × 6,622.76
  4. Step 4: Simplify right side
    12,170.92x = 120,927,756.40
  5. Step 5: Solve for x
    x = 120,927,756.40/12,170.92
  6. Step 6: Final answer
    x = 9,935.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.