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Finding the Fourth Proportional to 6,343.16, 9,515.28 and 1,663.16

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Solution

The fourth proportional to 6,343.16, 9,515.28 and 1,663.16 is: 2,494.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,343.16 : 9,515.28 = 1,663.16 : x
  2. Step 2: Convert to fraction form
    6,343.16/9,515.28 = 1,663.16/x
  3. Step 3: Cross multiply
    6,343.16x = 9,515.28 × 1,663.16
  4. Step 4: Simplify right side
    6,343.16x = 15,825,433.08
  5. Step 5: Solve for x
    x = 15,825,433.08/6,343.16
  6. Step 6: Final answer
    x = 2,494.88

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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.