Home / 11,326.48-15,629.52-6,290.80

Finding the Fourth Proportional to 11,326.48, 15,629.52 and 6,290.80

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Solution

The fourth proportional to 11,326.48, 15,629.52 and 6,290.80 is: 8,680.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,326.48 : 15,629.52 = 6,290.80 : x
  2. Step 2: Convert to fraction form
    11,326.48/15,629.52 = 6,290.80/x
  3. Step 3: Cross multiply
    11,326.48x = 15,629.52 × 6,290.80
  4. Step 4: Simplify right side
    11,326.48x = 98,322,184.42
  5. Step 5: Solve for x
    x = 98,322,184.42/11,326.48
  6. Step 6: Final answer
    x = 8,680.74

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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.