Home / 7,667.06-11,500.59-2,120.40

Finding the Fourth Proportional to 7,667.06, 11,500.59 and 2,120.40

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Solution

The fourth proportional to 7,667.06, 11,500.59 and 2,120.40 is: 3,180.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,667.06 : 11,500.59 = 2,120.40 : x
  2. Step 2: Convert to fraction form
    7,667.06/11,500.59 = 2,120.40/x
  3. Step 3: Cross multiply
    7,667.06x = 11,500.59 × 2,120.40
  4. Step 4: Simplify right side
    7,667.06x = 24,385,887.61
  5. Step 5: Solve for x
    x = 24,385,887.61/7,667.06
  6. Step 6: Final answer
    x = 3,180.61

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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.