Home / 7,678.52-11,516.86-4,517.85

Finding the Fourth Proportional to 7,678.52, 11,516.86 and 4,517.85

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Solution

The fourth proportional to 7,678.52, 11,516.86 and 4,517.85 is: 6,776.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,678.52 : 11,516.86 = 4,517.85 : x
  2. Step 2: Convert to fraction form
    7,678.52/11,516.86 = 4,517.85/x
  3. Step 3: Cross multiply
    7,678.52x = 11,516.86 × 4,517.85
  4. Step 4: Simplify right side
    7,678.52x = 52,031,420.16
  5. Step 5: Solve for x
    x = 52,031,420.16/7,678.52
  6. Step 6: Final answer
    x = 6,776.23

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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.