Home / 12,670.26-19,007.16-3,905.88

Finding the Fourth Proportional to 12,670.26, 19,007.16 and 3,905.88

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Solution

The fourth proportional to 12,670.26, 19,007.16 and 3,905.88 is: 5,859.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,670.26 : 19,007.16 = 3,905.88 : x
  2. Step 2: Convert to fraction form
    12,670.26/19,007.16 = 3,905.88/x
  3. Step 3: Cross multiply
    12,670.26x = 19,007.16 × 3,905.88
  4. Step 4: Simplify right side
    12,670.26x = 74,239,686.10
  5. Step 5: Solve for x
    x = 74,239,686.10/12,670.26
  6. Step 6: Final answer
    x = 5,859.37

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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.