Home / 11,326.28-15,631.25-6,291.48

Finding the Fourth Proportional to 11,326.28, 15,631.25 and 6,291.48

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Solution

The fourth proportional to 11,326.28, 15,631.25 and 6,291.48 is: 8,682.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,326.28 : 15,631.25 = 6,291.48 : x
  2. Step 2: Convert to fraction form
    11,326.28/15,631.25 = 6,291.48/x
  3. Step 3: Cross multiply
    11,326.28x = 15,631.25 × 6,291.48
  4. Step 4: Simplify right side
    11,326.28x = 98,343,696.75
  5. Step 5: Solve for x
    x = 98,343,696.75/11,326.28
  6. Step 6: Final answer
    x = 8,682.79

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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.