Home / 7,715.31-11,573.64-2,168.70

Finding the Fourth Proportional to 7,715.31, 11,573.64 and 2,168.70

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Solution

The fourth proportional to 7,715.31, 11,573.64 and 2,168.70 is: 3,253.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.31 : 11,573.64 = 2,168.70 : x
  2. Step 2: Convert to fraction form
    7,715.31/11,573.64 = 2,168.70/x
  3. Step 3: Cross multiply
    7,715.31x = 11,573.64 × 2,168.70
  4. Step 4: Simplify right side
    7,715.31x = 25,099,742.22
  5. Step 5: Solve for x
    x = 25,099,742.22/7,715.31
  6. Step 6: Final answer
    x = 3,253.24

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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.