Home / 11,456.22-15,808.80-6,419.58

Finding the Fourth Proportional to 11,456.22, 15,808.80 and 6,419.58

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Solution

The fourth proportional to 11,456.22, 15,808.80 and 6,419.58 is: 8,858.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,456.22 : 15,808.80 = 6,419.58 : x
  2. Step 2: Convert to fraction form
    11,456.22/15,808.80 = 6,419.58/x
  3. Step 3: Cross multiply
    11,456.22x = 15,808.80 × 6,419.58
  4. Step 4: Simplify right side
    11,456.22x = 101,485,856.30
  5. Step 5: Solve for x
    x = 101,485,856.30/11,456.22
  6. Step 6: Final answer
    x = 8,858.58

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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.