Home / 11,326.15-15,630.19-6,290.46

Finding the Fourth Proportional to 11,326.15, 15,630.19 and 6,290.46

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Solution

The fourth proportional to 11,326.15, 15,630.19 and 6,290.46 is: 8,680.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,326.15 : 15,630.19 = 6,290.46 : x
  2. Step 2: Convert to fraction form
    11,326.15/15,630.19 = 6,290.46/x
  3. Step 3: Cross multiply
    11,326.15x = 15,630.19 × 6,290.46
  4. Step 4: Simplify right side
    11,326.15x = 98,321,069.26
  5. Step 5: Solve for x
    x = 98,321,069.26/11,326.15
  6. Step 6: Final answer
    x = 8,680.89

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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.