Home / 11,394.28-15,725.46-6,918.76

Finding the Fourth Proportional to 11,394.28, 15,725.46 and 6,918.76

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Solution

The fourth proportional to 11,394.28, 15,725.46 and 6,918.76 is: 9,548.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,394.28 : 15,725.46 = 6,918.76 : x
  2. Step 2: Convert to fraction form
    11,394.28/15,725.46 = 6,918.76/x
  3. Step 3: Cross multiply
    11,394.28x = 15,725.46 × 6,918.76
  4. Step 4: Simplify right side
    11,394.28x = 108,800,683.63
  5. Step 5: Solve for x
    x = 108,800,683.63/11,394.28
  6. Step 6: Final answer
    x = 9,548.71

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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.