Home / 11,326.07-15,630.48-6,290.30

Finding the Fourth Proportional to 11,326.07, 15,630.48 and 6,290.30

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Solution

The fourth proportional to 11,326.07, 15,630.48 and 6,290.30 is: 8,680.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,326.07 : 15,630.48 = 6,290.30 : x
  2. Step 2: Convert to fraction form
    11,326.07/15,630.48 = 6,290.30/x
  3. Step 3: Cross multiply
    11,326.07x = 15,630.48 × 6,290.30
  4. Step 4: Simplify right side
    11,326.07x = 98,320,447.42
  5. Step 5: Solve for x
    x = 98,320,447.42/11,326.07
  6. Step 6: Final answer
    x = 8,680.90

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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.