Home / 11,419.08-17,103.86-11,140.32

Finding the Fourth Proportional to 11,419.08, 17,103.86 and 11,140.32

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Solution

The fourth proportional to 11,419.08, 17,103.86 and 11,140.32 is: 16,686.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,419.08 : 17,103.86 = 11,140.32 : x
  2. Step 2: Convert to fraction form
    11,419.08/17,103.86 = 11,140.32/x
  3. Step 3: Cross multiply
    11,419.08x = 17,103.86 × 11,140.32
  4. Step 4: Simplify right side
    11,419.08x = 190,542,473.64
  5. Step 5: Solve for x
    x = 190,542,473.64/11,419.08
  6. Step 6: Final answer
    x = 16,686.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.