Home / 10,781.64-16,172.46-4,935.24

Finding the Fourth Proportional to 10,781.64, 16,172.46 and 4,935.24

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Solution

The fourth proportional to 10,781.64, 16,172.46 and 4,935.24 is: 7,402.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,781.64 : 16,172.46 = 4,935.24 : x
  2. Step 2: Convert to fraction form
    10,781.64/16,172.46 = 4,935.24/x
  3. Step 3: Cross multiply
    10,781.64x = 16,172.46 × 4,935.24
  4. Step 4: Simplify right side
    10,781.64x = 79,814,971.49
  5. Step 5: Solve for x
    x = 79,814,971.49/10,781.64
  6. Step 6: Final answer
    x = 7,402.86

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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.