Home / 7,719.52-11,546.30-6,445.32

Finding the Fourth Proportional to 7,719.52, 11,546.30 and 6,445.32

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Solution

The fourth proportional to 7,719.52, 11,546.30 and 6,445.32 is: 9,640.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,719.52 : 11,546.30 = 6,445.32 : x
  2. Step 2: Convert to fraction form
    7,719.52/11,546.30 = 6,445.32/x
  3. Step 3: Cross multiply
    7,719.52x = 11,546.30 × 6,445.32
  4. Step 4: Simplify right side
    7,719.52x = 74,419,598.32
  5. Step 5: Solve for x
    x = 74,419,598.32/7,719.52
  6. Step 6: Final answer
    x = 9,640.44

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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.