Home / 14,221.76-21,342.72-4,988.48

Finding the Fourth Proportional to 14,221.76, 21,342.72 and 4,988.48

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Solution

The fourth proportional to 14,221.76, 21,342.72 and 4,988.48 is: 7,486.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,221.76 : 21,342.72 = 4,988.48 : x
  2. Step 2: Convert to fraction form
    14,221.76/21,342.72 = 4,988.48/x
  3. Step 3: Cross multiply
    14,221.76x = 21,342.72 × 4,988.48
  4. Step 4: Simplify right side
    14,221.76x = 106,467,731.87
  5. Step 5: Solve for x
    x = 106,467,731.87/14,221.76
  6. Step 6: Final answer
    x = 7,486.26

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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.