Home / 7,621.31-10,516.69-4,749.77

Finding the Fourth Proportional to 7,621.31, 10,516.69 and 4,749.77

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Solution

The fourth proportional to 7,621.31, 10,516.69 and 4,749.77 is: 6,554.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.31 : 10,516.69 = 4,749.77 : x
  2. Step 2: Convert to fraction form
    7,621.31/10,516.69 = 4,749.77/x
  3. Step 3: Cross multiply
    7,621.31x = 10,516.69 × 4,749.77
  4. Step 4: Simplify right side
    7,621.31x = 49,951,794.20
  5. Step 5: Solve for x
    x = 49,951,794.20/7,621.31
  6. Step 6: Final answer
    x = 6,554.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.