Home / 9,863.94-13,612.57-5,388.11

Finding the Fourth Proportional to 9,863.94, 13,612.57 and 5,388.11

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Solution

The fourth proportional to 9,863.94, 13,612.57 and 5,388.11 is: 7,435.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,863.94 : 13,612.57 = 5,388.11 : x
  2. Step 2: Convert to fraction form
    9,863.94/13,612.57 = 5,388.11/x
  3. Step 3: Cross multiply
    9,863.94x = 13,612.57 × 5,388.11
  4. Step 4: Simplify right side
    9,863.94x = 73,346,039.92
  5. Step 5: Solve for x
    x = 73,346,039.92/9,863.94
  6. Step 6: Final answer
    x = 7,435.77

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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.