Home / 7,748.80-11,618.16-4,288.48

Finding the Fourth Proportional to 7,748.80, 11,618.16 and 4,288.48

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Solution

The fourth proportional to 7,748.80, 11,618.16 and 4,288.48 is: 6,429.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,748.80 : 11,618.16 = 4,288.48 : x
  2. Step 2: Convert to fraction form
    7,748.80/11,618.16 = 4,288.48/x
  3. Step 3: Cross multiply
    7,748.80x = 11,618.16 × 4,288.48
  4. Step 4: Simplify right side
    7,748.80x = 49,824,246.80
  5. Step 5: Solve for x
    x = 49,824,246.80/7,748.80
  6. Step 6: Final answer
    x = 6,429.93

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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.