Home / 7,678.08-11,516.21-4,517.42

Finding the Fourth Proportional to 7,678.08, 11,516.21 and 4,517.42

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Solution

The fourth proportional to 7,678.08, 11,516.21 and 4,517.42 is: 6,775.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,678.08 : 11,516.21 = 4,517.42 : x
  2. Step 2: Convert to fraction form
    7,678.08/11,516.21 = 4,517.42/x
  3. Step 3: Cross multiply
    7,678.08x = 11,516.21 × 4,517.42
  4. Step 4: Simplify right side
    7,678.08x = 52,023,477.21
  5. Step 5: Solve for x
    x = 52,023,477.21/7,678.08
  6. Step 6: Final answer
    x = 6,775.58

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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.