Home / 15,667.32-21,620.70-8,952.87

Finding the Fourth Proportional to 15,667.32, 21,620.70 and 8,952.87

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Solution

The fourth proportional to 15,667.32, 21,620.70 and 8,952.87 is: 12,354.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,667.32 : 21,620.70 = 8,952.87 : x
  2. Step 2: Convert to fraction form
    15,667.32/21,620.70 = 8,952.87/x
  3. Step 3: Cross multiply
    15,667.32x = 21,620.70 × 8,952.87
  4. Step 4: Simplify right side
    15,667.32x = 193,567,316.41
  5. Step 5: Solve for x
    x = 193,567,316.41/15,667.32
  6. Step 6: Final answer
    x = 12,354.85

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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.