Home / 15,619.86-21,555.38-8,546.28

Finding the Fourth Proportional to 15,619.86, 21,555.38 and 8,546.28

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Solution

The fourth proportional to 15,619.86, 21,555.38 and 8,546.28 is: 11,793.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,619.86 : 21,555.38 = 8,546.28 : x
  2. Step 2: Convert to fraction form
    15,619.86/21,555.38 = 8,546.28/x
  3. Step 3: Cross multiply
    15,619.86x = 21,555.38 × 8,546.28
  4. Step 4: Simplify right side
    15,619.86x = 184,218,312.99
  5. Step 5: Solve for x
    x = 184,218,312.99/15,619.86
  6. Step 6: Final answer
    x = 11,793.85

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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.