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Finding the Fourth Proportional to 9,215.88, 12,713.88 and 6,230.64

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Solution

The fourth proportional to 9,215.88, 12,713.88 and 6,230.64 is: 8,595.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,215.88 : 12,713.88 = 6,230.64 : x
  2. Step 2: Convert to fraction form
    9,215.88/12,713.88 = 6,230.64/x
  3. Step 3: Cross multiply
    9,215.88x = 12,713.88 × 6,230.64
  4. Step 4: Simplify right side
    9,215.88x = 79,215,609.28
  5. Step 5: Solve for x
    x = 79,215,609.28/9,215.88
  6. Step 6: Final answer
    x = 8,595.56

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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.