Home / 13,758.32-20,623.36-5,434.96

Finding the Fourth Proportional to 13,758.32, 20,623.36 and 5,434.96

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Solution

The fourth proportional to 13,758.32, 20,623.36 and 5,434.96 is: 8,146.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,758.32 : 20,623.36 = 5,434.96 : x
  2. Step 2: Convert to fraction form
    13,758.32/20,623.36 = 5,434.96/x
  3. Step 3: Cross multiply
    13,758.32x = 20,623.36 × 5,434.96
  4. Step 4: Simplify right side
    13,758.32x = 112,087,136.67
  5. Step 5: Solve for x
    x = 112,087,136.67/13,758.32
  6. Step 6: Final answer
    x = 8,146.86

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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.