Home / 7,708.56-11,553.40-3,316.72

Finding the Fourth Proportional to 7,708.56, 11,553.40 and 3,316.72

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Solution

The fourth proportional to 7,708.56, 11,553.40 and 3,316.72 is: 4,971.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,708.56 : 11,553.40 = 3,316.72 : x
  2. Step 2: Convert to fraction form
    7,708.56/11,553.40 = 3,316.72/x
  3. Step 3: Cross multiply
    7,708.56x = 11,553.40 × 3,316.72
  4. Step 4: Simplify right side
    7,708.56x = 38,319,392.85
  5. Step 5: Solve for x
    x = 38,319,392.85/7,708.56
  6. Step 6: Final answer
    x = 4,971.02

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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.