Home / 8,422.68-11,623.91-4,887.95

Finding the Fourth Proportional to 8,422.68, 11,623.91 and 4,887.95

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Solution

The fourth proportional to 8,422.68, 11,623.91 and 4,887.95 is: 6,745.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,422.68 : 11,623.91 = 4,887.95 : x
  2. Step 2: Convert to fraction form
    8,422.68/11,623.91 = 4,887.95/x
  3. Step 3: Cross multiply
    8,422.68x = 11,623.91 × 4,887.95
  4. Step 4: Simplify right side
    8,422.68x = 56,817,008.33
  5. Step 5: Solve for x
    x = 56,817,008.33/8,422.68
  6. Step 6: Final answer
    x = 6,745.71

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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.