Home / 14,223.80-21,319.50-5,454.92

Finding the Fourth Proportional to 14,223.80, 21,319.50 and 5,454.92

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Solution

The fourth proportional to 14,223.80, 21,319.50 and 5,454.92 is: 8,176.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,223.80 : 21,319.50 = 5,454.92 : x
  2. Step 2: Convert to fraction form
    14,223.80/21,319.50 = 5,454.92/x
  3. Step 3: Cross multiply
    14,223.80x = 21,319.50 × 5,454.92
  4. Step 4: Simplify right side
    14,223.80x = 116,296,166.94
  5. Step 5: Solve for x
    x = 116,296,166.94/14,223.80
  6. Step 6: Final answer
    x = 8,176.17

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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.