Home / 10,459.38-15,695.19-3,890.10

Finding the Fourth Proportional to 10,459.38, 15,695.19 and 3,890.10

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Solution

The fourth proportional to 10,459.38, 15,695.19 and 3,890.10 is: 5,837.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,459.38 : 15,695.19 = 3,890.10 : x
  2. Step 2: Convert to fraction form
    10,459.38/15,695.19 = 3,890.10/x
  3. Step 3: Cross multiply
    10,459.38x = 15,695.19 × 3,890.10
  4. Step 4: Simplify right side
    10,459.38x = 61,055,858.62
  5. Step 5: Solve for x
    x = 61,055,858.62/10,459.38
  6. Step 6: Final answer
    x = 5,837.43

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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.