Home / 14,971.20-22,456.80-5,110.80

Finding the Fourth Proportional to 14,971.20, 22,456.80 and 5,110.80

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Solution

The fourth proportional to 14,971.20, 22,456.80 and 5,110.80 is: 7,666.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,971.20 : 22,456.80 = 5,110.80 : x
  2. Step 2: Convert to fraction form
    14,971.20/22,456.80 = 5,110.80/x
  3. Step 3: Cross multiply
    14,971.20x = 22,456.80 × 5,110.80
  4. Step 4: Simplify right side
    14,971.20x = 114,772,213.44
  5. Step 5: Solve for x
    x = 114,772,213.44/14,971.20
  6. Step 6: Final answer
    x = 7,666.20

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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.