Home / 8,751.30-13,121.55-5,051.70

Finding the Fourth Proportional to 8,751.30, 13,121.55 and 5,051.70

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Solution

The fourth proportional to 8,751.30, 13,121.55 and 5,051.70 is: 7,574.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.30 : 13,121.55 = 5,051.70 : x
  2. Step 2: Convert to fraction form
    8,751.30/13,121.55 = 5,051.70/x
  3. Step 3: Cross multiply
    8,751.30x = 13,121.55 × 5,051.70
  4. Step 4: Simplify right side
    8,751.30x = 66,286,134.14
  5. Step 5: Solve for x
    x = 66,286,134.14/8,751.30
  6. Step 6: Final answer
    x = 7,574.43

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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.