Home / 11,005.47-15,183.57-7,230.66

Finding the Fourth Proportional to 11,005.47, 15,183.57 and 7,230.66

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Solution

The fourth proportional to 11,005.47, 15,183.57 and 7,230.66 is: 9,975.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,005.47 : 15,183.57 = 7,230.66 : x
  2. Step 2: Convert to fraction form
    11,005.47/15,183.57 = 7,230.66/x
  3. Step 3: Cross multiply
    11,005.47x = 15,183.57 × 7,230.66
  4. Step 4: Simplify right side
    11,005.47x = 109,787,232.26
  5. Step 5: Solve for x
    x = 109,787,232.26/11,005.47
  6. Step 6: Final answer
    x = 9,975.70

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1.5x scale

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.