Home / 10,161.60-14,021.13-5,685.39

Finding the Fourth Proportional to 10,161.60, 14,021.13 and 5,685.39

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Solution

The fourth proportional to 10,161.60, 14,021.13 and 5,685.39 is: 7,844.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,161.60 : 14,021.13 = 5,685.39 : x
  2. Step 2: Convert to fraction form
    10,161.60/14,021.13 = 5,685.39/x
  3. Step 3: Cross multiply
    10,161.60x = 14,021.13 × 5,685.39
  4. Step 4: Simplify right side
    10,161.60x = 79,715,592.29
  5. Step 5: Solve for x
    x = 79,715,592.29/10,161.60
  6. Step 6: Final answer
    x = 7,844.79

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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.