Home / 7,121.91-10,682.94-4,672.27

Finding the Fourth Proportional to 7,121.91, 10,682.94 and 4,672.27

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Solution

The fourth proportional to 7,121.91, 10,682.94 and 4,672.27 is: 7,008.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121.91 : 10,682.94 = 4,672.27 : x
  2. Step 2: Convert to fraction form
    7,121.91/10,682.94 = 4,672.27/x
  3. Step 3: Cross multiply
    7,121.91x = 10,682.94 × 4,672.27
  4. Step 4: Simplify right side
    7,121.91x = 49,913,580.07
  5. Step 5: Solve for x
    x = 49,913,580.07/7,121.91
  6. Step 6: Final answer
    x = 7,008.45

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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.