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Finding the Fourth Proportional to 9,183.60, 13,751.10 and 7,223.40

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Solution

The fourth proportional to 9,183.60, 13,751.10 and 7,223.40 is: 10,815.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,183.60 : 13,751.10 = 7,223.40 : x
  2. Step 2: Convert to fraction form
    9,183.60/13,751.10 = 7,223.40/x
  3. Step 3: Cross multiply
    9,183.60x = 13,751.10 × 7,223.40
  4. Step 4: Simplify right side
    9,183.60x = 99,329,695.74
  5. Step 5: Solve for x
    x = 99,329,695.74/9,183.60
  6. Step 6: Final answer
    x = 10,815.99

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1.5x scale

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.