Home / 13,335.20-19,997.04-5,538.68

Finding the Fourth Proportional to 13,335.20, 19,997.04 and 5,538.68

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Solution

The fourth proportional to 13,335.20, 19,997.04 and 5,538.68 is: 8,305.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.20 : 19,997.04 = 5,538.68 : x
  2. Step 2: Convert to fraction form
    13,335.20/19,997.04 = 5,538.68/x
  3. Step 3: Cross multiply
    13,335.20x = 19,997.04 × 5,538.68
  4. Step 4: Simplify right side
    13,335.20x = 110,757,205.51
  5. Step 5: Solve for x
    x = 110,757,205.51/13,335.20
  6. Step 6: Final answer
    x = 8,305.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.