Home / 15,620.40-21,555.44-8,546.64

Finding the Fourth Proportional to 15,620.40, 21,555.44 and 8,546.64

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Solution

The fourth proportional to 15,620.40, 21,555.44 and 8,546.64 is: 11,793.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,620.40 : 21,555.44 = 8,546.64 : x
  2. Step 2: Convert to fraction form
    15,620.40/21,555.44 = 8,546.64/x
  3. Step 3: Cross multiply
    15,620.40x = 21,555.44 × 8,546.64
  4. Step 4: Simplify right side
    15,620.40x = 184,226,585.72
  5. Step 5: Solve for x
    x = 184,226,585.72/15,620.40
  6. Step 6: Final answer
    x = 11,793.97

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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.