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Finding the Fourth Proportional to 9,995.76, 14,992.58 and 5,310.81

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Solution

The fourth proportional to 9,995.76, 14,992.58 and 5,310.81 is: 7,965.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,995.76 : 14,992.58 = 5,310.81 : x
  2. Step 2: Convert to fraction form
    9,995.76/14,992.58 = 5,310.81/x
  3. Step 3: Cross multiply
    9,995.76x = 14,992.58 × 5,310.81
  4. Step 4: Simplify right side
    9,995.76x = 79,622,757.07
  5. Step 5: Solve for x
    x = 79,622,757.07/9,995.76
  6. Step 6: Final answer
    x = 7,965.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.