Home / 15,620.15-21,555.78-8,546.56

Finding the Fourth Proportional to 15,620.15, 21,555.78 and 8,546.56

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Solution

The fourth proportional to 15,620.15, 21,555.78 and 8,546.56 is: 11,794.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,620.15 : 21,555.78 = 8,546.56 : x
  2. Step 2: Convert to fraction form
    15,620.15/21,555.78 = 8,546.56/x
  3. Step 3: Cross multiply
    15,620.15x = 21,555.78 × 8,546.56
  4. Step 4: Simplify right side
    15,620.15x = 184,227,767.12
  5. Step 5: Solve for x
    x = 184,227,767.12/15,620.15
  6. Step 6: Final answer
    x = 11,794.24

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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.