Home / 15,619.72-21,555.24-8,546.14

Finding the Fourth Proportional to 15,619.72, 21,555.24 and 8,546.14

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Solution

The fourth proportional to 15,619.72, 21,555.24 and 8,546.14 is: 11,793.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,619.72 : 21,555.24 = 8,546.14 : x
  2. Step 2: Convert to fraction form
    15,619.72/21,555.24 = 8,546.14/x
  3. Step 3: Cross multiply
    15,619.72x = 21,555.24 × 8,546.14
  4. Step 4: Simplify right side
    15,619.72x = 184,214,098.77
  5. Step 5: Solve for x
    x = 184,214,098.77/15,619.72
  6. Step 6: Final answer
    x = 11,793.69

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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.