Home / 9,115.60-13,678.08-4,736.56

Finding the Fourth Proportional to 9,115.60, 13,678.08 and 4,736.56

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Solution

The fourth proportional to 9,115.60, 13,678.08 and 4,736.56 is: 7,107.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.60 : 13,678.08 = 4,736.56 : x
  2. Step 2: Convert to fraction form
    9,115.60/13,678.08 = 4,736.56/x
  3. Step 3: Cross multiply
    9,115.60x = 13,678.08 × 4,736.56
  4. Step 4: Simplify right side
    9,115.60x = 64,787,046.60
  5. Step 5: Solve for x
    x = 64,787,046.60/9,115.60
  6. Step 6: Final answer
    x = 7,107.27

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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.