Home / 15,667.14-21,620.22-8,951.70

Finding the Fourth Proportional to 15,667.14, 21,620.22 and 8,951.70

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Solution

The fourth proportional to 15,667.14, 21,620.22 and 8,951.70 is: 12,353.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,667.14 : 21,620.22 = 8,951.70 : x
  2. Step 2: Convert to fraction form
    15,667.14/21,620.22 = 8,951.70/x
  3. Step 3: Cross multiply
    15,667.14x = 21,620.22 × 8,951.70
  4. Step 4: Simplify right side
    15,667.14x = 193,537,723.37
  5. Step 5: Solve for x
    x = 193,537,723.37/15,667.14
  6. Step 6: Final answer
    x = 12,353.10

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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.