Home / 11,326.66-15,630.25-6,291.20

Finding the Fourth Proportional to 11,326.66, 15,630.25 and 6,291.20

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Solution

The fourth proportional to 11,326.66, 15,630.25 and 6,291.20 is: 8,681.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,326.66 : 15,630.25 = 6,291.20 : x
  2. Step 2: Convert to fraction form
    11,326.66/15,630.25 = 6,291.20/x
  3. Step 3: Cross multiply
    11,326.66x = 15,630.25 × 6,291.20
  4. Step 4: Simplify right side
    11,326.66x = 98,333,028.80
  5. Step 5: Solve for x
    x = 98,333,028.80/11,326.66
  6. Step 6: Final answer
    x = 8,681.56

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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.