Home / 11,154.58-15,394.60-6,678.33

Finding the Fourth Proportional to 11,154.58, 15,394.60 and 6,678.33

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Solution

The fourth proportional to 11,154.58, 15,394.60 and 6,678.33 is: 9,216.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,154.58 : 15,394.60 = 6,678.33 : x
  2. Step 2: Convert to fraction form
    11,154.58/15,394.60 = 6,678.33/x
  3. Step 3: Cross multiply
    11,154.58x = 15,394.60 × 6,678.33
  4. Step 4: Simplify right side
    11,154.58x = 102,810,142.05
  5. Step 5: Solve for x
    x = 102,810,142.05/11,154.58
  6. Step 6: Final answer
    x = 9,216.86

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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.