Home / 11,326.56-15,630.96-6,290.64

Finding the Fourth Proportional to 11,326.56, 15,630.96 and 6,290.64

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Solution

The fourth proportional to 11,326.56, 15,630.96 and 6,290.64 is: 8,681.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,326.56 : 15,630.96 = 6,290.64 : x
  2. Step 2: Convert to fraction form
    11,326.56/15,630.96 = 6,290.64/x
  3. Step 3: Cross multiply
    11,326.56x = 15,630.96 × 6,290.64
  4. Step 4: Simplify right side
    11,326.56x = 98,328,742.21
  5. Step 5: Solve for x
    x = 98,328,742.21/11,326.56
  6. Step 6: Final answer
    x = 8,681.25

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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.