Home / 9,865.26-13,605.57-8,789.99

Finding the Fourth Proportional to 9,865.26, 13,605.57 and 8,789.99

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Solution

The fourth proportional to 9,865.26, 13,605.57 and 8,789.99 is: 12,122.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,865.26 : 13,605.57 = 8,789.99 : x
  2. Step 2: Convert to fraction form
    9,865.26/13,605.57 = 8,789.99/x
  3. Step 3: Cross multiply
    9,865.26x = 13,605.57 × 8,789.99
  4. Step 4: Simplify right side
    9,865.26x = 119,592,756.22
  5. Step 5: Solve for x
    x = 119,592,756.22/9,865.26
  6. Step 6: Final answer
    x = 12,122.62

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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.