Home / 9,480.72-13,083.28-5,231.81

Finding the Fourth Proportional to 9,480.72, 13,083.28 and 5,231.81

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Solution

The fourth proportional to 9,480.72, 13,083.28 and 5,231.81 is: 7,219.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,480.72 : 13,083.28 = 5,231.81 : x
  2. Step 2: Convert to fraction form
    9,480.72/13,083.28 = 5,231.81/x
  3. Step 3: Cross multiply
    9,480.72x = 13,083.28 × 5,231.81
  4. Step 4: Simplify right side
    9,480.72x = 68,449,280.92
  5. Step 5: Solve for x
    x = 68,449,280.92/9,480.72
  6. Step 6: Final answer
    x = 7,219.84

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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.