Home / 11,078.16-15,290.24-6,365.04

Finding the Fourth Proportional to 11,078.16, 15,290.24 and 6,365.04

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Solution

The fourth proportional to 11,078.16, 15,290.24 and 6,365.04 is: 8,785.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.16 : 15,290.24 = 6,365.04 : x
  2. Step 2: Convert to fraction form
    11,078.16/15,290.24 = 6,365.04/x
  3. Step 3: Cross multiply
    11,078.16x = 15,290.24 × 6,365.04
  4. Step 4: Simplify right side
    11,078.16x = 97,322,989.21
  5. Step 5: Solve for x
    x = 97,322,989.21/11,078.16
  6. Step 6: Final answer
    x = 8,785.12

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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.