Home / 14,072.52-21,112.77-5,305.74

Finding the Fourth Proportional to 14,072.52, 21,112.77 and 5,305.74

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Solution

The fourth proportional to 14,072.52, 21,112.77 and 5,305.74 is: 7,960.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,072.52 : 21,112.77 = 5,305.74 : x
  2. Step 2: Convert to fraction form
    14,072.52/21,112.77 = 5,305.74/x
  3. Step 3: Cross multiply
    14,072.52x = 21,112.77 × 5,305.74
  4. Step 4: Simplify right side
    14,072.52x = 112,018,868.30
  5. Step 5: Solve for x
    x = 112,018,868.30/14,072.52
  6. Step 6: Final answer
    x = 7,960.11

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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.