Home / 7,738.98-11,612.72-3,356.47

Finding the Fourth Proportional to 7,738.98, 11,612.72 and 3,356.47

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Solution

The fourth proportional to 7,738.98, 11,612.72 and 3,356.47 is: 5,036.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738.98 : 11,612.72 = 3,356.47 : x
  2. Step 2: Convert to fraction form
    7,738.98/11,612.72 = 3,356.47/x
  3. Step 3: Cross multiply
    7,738.98x = 11,612.72 × 3,356.47
  4. Step 4: Simplify right side
    7,738.98x = 38,977,746.30
  5. Step 5: Solve for x
    x = 38,977,746.30/7,738.98
  6. Step 6: Final answer
    x = 5,036.55

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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.