Home / 8,900.27-12,282.07-5,122.91

Finding the Fourth Proportional to 8,900.27, 12,282.07 and 5,122.91

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Solution

The fourth proportional to 8,900.27, 12,282.07 and 5,122.91 is: 7,069.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,900.27 : 12,282.07 = 5,122.91 : x
  2. Step 2: Convert to fraction form
    8,900.27/12,282.07 = 5,122.91/x
  3. Step 3: Cross multiply
    8,900.27x = 12,282.07 × 5,122.91
  4. Step 4: Simplify right side
    8,900.27x = 62,919,939.22
  5. Step 5: Solve for x
    x = 62,919,939.22/8,900.27
  6. Step 6: Final answer
    x = 7,069.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.