Home / 8,774.98-13,163.16-2,931.61

Finding the Fourth Proportional to 8,774.98, 13,163.16 and 2,931.61

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Solution

The fourth proportional to 8,774.98, 13,163.16 and 2,931.61 is: 4,397.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,774.98 : 13,163.16 = 2,931.61 : x
  2. Step 2: Convert to fraction form
    8,774.98/13,163.16 = 2,931.61/x
  3. Step 3: Cross multiply
    8,774.98x = 13,163.16 × 2,931.61
  4. Step 4: Simplify right side
    8,774.98x = 38,589,171.01
  5. Step 5: Solve for x
    x = 38,589,171.01/8,774.98
  6. Step 6: Final answer
    x = 4,397.64

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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.