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Finding the Fourth Proportional to 9,605.80, 13,257.92 and 6,251.50

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Solution

The fourth proportional to 9,605.80, 13,257.92 and 6,251.50 is: 8,628.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,605.80 : 13,257.92 = 6,251.50 : x
  2. Step 2: Convert to fraction form
    9,605.80/13,257.92 = 6,251.50/x
  3. Step 3: Cross multiply
    9,605.80x = 13,257.92 × 6,251.50
  4. Step 4: Simplify right side
    9,605.80x = 82,881,886.88
  5. Step 5: Solve for x
    x = 82,881,886.88/9,605.80
  6. Step 6: Final answer
    x = 8,628.32

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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.