Home / 9,172.80-13,758.30-3,624.72

Finding the Fourth Proportional to 9,172.80, 13,758.30 and 3,624.72

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Solution

The fourth proportional to 9,172.80, 13,758.30 and 3,624.72 is: 5,436.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,172.80 : 13,758.30 = 3,624.72 : x
  2. Step 2: Convert to fraction form
    9,172.80/13,758.30 = 3,624.72/x
  3. Step 3: Cross multiply
    9,172.80x = 13,758.30 × 3,624.72
  4. Step 4: Simplify right side
    9,172.80x = 49,869,985.18
  5. Step 5: Solve for x
    x = 49,869,985.18/9,172.80
  6. Step 6: Final answer
    x = 5,436.72

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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.