Home / 11,106.57-15,322.68-6,388.32

Finding the Fourth Proportional to 11,106.57, 15,322.68 and 6,388.32

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Solution

The fourth proportional to 11,106.57, 15,322.68 and 6,388.32 is: 8,813.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,106.57 : 15,322.68 = 6,388.32 : x
  2. Step 2: Convert to fraction form
    11,106.57/15,322.68 = 6,388.32/x
  3. Step 3: Cross multiply
    11,106.57x = 15,322.68 × 6,388.32
  4. Step 4: Simplify right side
    11,106.57x = 97,886,183.10
  5. Step 5: Solve for x
    x = 97,886,183.10/11,106.57
  6. Step 6: Final answer
    x = 8,813.36

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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.