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Finding the Fourth Proportional to 9,855, 13,596.48 and 5,605.56

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Solution

The fourth proportional to 9,855, 13,596.48 and 5,605.56 is: 7,733.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,855 : 13,596.48 = 5,605.56 : x
  2. Step 2: Convert to fraction form
    9,855/13,596.48 = 5,605.56/x
  3. Step 3: Cross multiply
    9,855x = 13,596.48 × 5,605.56
  4. Step 4: Simplify right side
    9,855x = 76,215,884.43
  5. Step 5: Solve for x
    x = 76,215,884.43/9,855
  6. Step 6: Final answer
    x = 7,733.73

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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.