Home / 7,721.02-11,581.62-5,105.26

Finding the Fourth Proportional to 7,721.02, 11,581.62 and 5,105.26

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Solution

The fourth proportional to 7,721.02, 11,581.62 and 5,105.26 is: 7,657.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.02 : 11,581.62 = 5,105.26 : x
  2. Step 2: Convert to fraction form
    7,721.02/11,581.62 = 5,105.26/x
  3. Step 3: Cross multiply
    7,721.02x = 11,581.62 × 5,105.26
  4. Step 4: Simplify right side
    7,721.02x = 59,127,181.32
  5. Step 5: Solve for x
    x = 59,127,181.32/7,721.02
  6. Step 6: Final answer
    x = 7,657.95

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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.