Home / 9,291.87-12,817.11-5,512.50

Finding the Fourth Proportional to 9,291.87, 12,817.11 and 5,512.50

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Solution

The fourth proportional to 9,291.87, 12,817.11 and 5,512.50 is: 7,603.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,291.87 : 12,817.11 = 5,512.50 : x
  2. Step 2: Convert to fraction form
    9,291.87/12,817.11 = 5,512.50/x
  3. Step 3: Cross multiply
    9,291.87x = 12,817.11 × 5,512.50
  4. Step 4: Simplify right side
    9,291.87x = 70,654,318.88
  5. Step 5: Solve for x
    x = 70,654,318.88/9,291.87
  6. Step 6: Final answer
    x = 7,603.89

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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.