Home / 13,424.40-20,134.08-5,633.28

Finding the Fourth Proportional to 13,424.40, 20,134.08 and 5,633.28

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Solution

The fourth proportional to 13,424.40, 20,134.08 and 5,633.28 is: 8,448.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,424.40 : 20,134.08 = 5,633.28 : x
  2. Step 2: Convert to fraction form
    13,424.40/20,134.08 = 5,633.28/x
  3. Step 3: Cross multiply
    13,424.40x = 20,134.08 × 5,633.28
  4. Step 4: Simplify right side
    13,424.40x = 113,420,910.18
  5. Step 5: Solve for x
    x = 113,420,910.18/13,424.40
  6. Step 6: Final answer
    x = 8,448.86

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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.