Home / 19,299.86-28,949.80-7,612.76

Finding the Fourth Proportional to 19,299.86, 28,949.80 and 7,612.76

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Solution

The fourth proportional to 19,299.86, 28,949.80 and 7,612.76 is: 11,419.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,299.86 : 28,949.80 = 7,612.76 : x
  2. Step 2: Convert to fraction form
    19,299.86/28,949.80 = 7,612.76/x
  3. Step 3: Cross multiply
    19,299.86x = 28,949.80 × 7,612.76
  4. Step 4: Simplify right side
    19,299.86x = 220,387,879.45
  5. Step 5: Solve for x
    x = 220,387,879.45/19,299.86
  6. Step 6: Final answer
    x = 11,419.14

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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.