Home / 14,211.80-21,305.55-5,453

Finding the Fourth Proportional to 14,211.80, 21,305.55 and 5,453

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Solution

The fourth proportional to 14,211.80, 21,305.55 and 5,453 is: 8,174.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,211.80 : 21,305.55 = 5,453 : x
  2. Step 2: Convert to fraction form
    14,211.80/21,305.55 = 5,453/x
  3. Step 3: Cross multiply
    14,211.80x = 21,305.55 × 5,453
  4. Step 4: Simplify right side
    14,211.80x = 116,179,164.15
  5. Step 5: Solve for x
    x = 116,179,164.15/14,211.80
  6. Step 6: Final answer
    x = 8,174.84

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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.