Home / 11,339.28-15,649.56-6,864.60

Finding the Fourth Proportional to 11,339.28, 15,649.56 and 6,864.60

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Solution

The fourth proportional to 11,339.28, 15,649.56 and 6,864.60 is: 9,473.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,339.28 : 15,649.56 = 6,864.60 : x
  2. Step 2: Convert to fraction form
    11,339.28/15,649.56 = 6,864.60/x
  3. Step 3: Cross multiply
    11,339.28x = 15,649.56 × 6,864.60
  4. Step 4: Simplify right side
    11,339.28x = 107,427,969.58
  5. Step 5: Solve for x
    x = 107,427,969.58/11,339.28
  6. Step 6: Final answer
    x = 9,473.97

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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.