Home / 11,326.16-15,629.56-6,290.70

Finding the Fourth Proportional to 11,326.16, 15,629.56 and 6,290.70

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Solution

The fourth proportional to 11,326.16, 15,629.56 and 6,290.70 is: 8,680.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,326.16 : 15,629.56 = 6,290.70 : x
  2. Step 2: Convert to fraction form
    11,326.16/15,629.56 = 6,290.70/x
  3. Step 3: Cross multiply
    11,326.16x = 15,629.56 × 6,290.70
  4. Step 4: Simplify right side
    11,326.16x = 98,320,873.09
  5. Step 5: Solve for x
    x = 98,320,873.09/11,326.16
  6. Step 6: Final answer
    x = 8,680.87

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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.