Home / 10,339.68-15,516.41-6,644.56

Finding the Fourth Proportional to 10,339.68, 15,516.41 and 6,644.56

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Solution

The fourth proportional to 10,339.68, 15,516.41 and 6,644.56 is: 9,971.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,339.68 : 15,516.41 = 6,644.56 : x
  2. Step 2: Convert to fraction form
    10,339.68/15,516.41 = 6,644.56/x
  3. Step 3: Cross multiply
    10,339.68x = 15,516.41 × 6,644.56
  4. Step 4: Simplify right side
    10,339.68x = 103,099,695.05
  5. Step 5: Solve for x
    x = 103,099,695.05/10,339.68
  6. Step 6: Final answer
    x = 9,971.27

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1.5x scale

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.