Home / 10,857.40-16,287.90-3,837.16

Finding the Fourth Proportional to 10,857.40, 16,287.90 and 3,837.16

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Solution

The fourth proportional to 10,857.40, 16,287.90 and 3,837.16 is: 5,756.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,857.40 : 16,287.90 = 3,837.16 : x
  2. Step 2: Convert to fraction form
    10,857.40/16,287.90 = 3,837.16/x
  3. Step 3: Cross multiply
    10,857.40x = 16,287.90 × 3,837.16
  4. Step 4: Simplify right side
    10,857.40x = 62,499,278.36
  5. Step 5: Solve for x
    x = 62,499,278.36/10,857.40
  6. Step 6: Final answer
    x = 5,756.38

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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.