Home / 12,904.26-19,342.38-5,412.66

Finding the Fourth Proportional to 12,904.26, 19,342.38 and 5,412.66

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Solution

The fourth proportional to 12,904.26, 19,342.38 and 5,412.66 is: 8,113.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,904.26 : 19,342.38 = 5,412.66 : x
  2. Step 2: Convert to fraction form
    12,904.26/19,342.38 = 5,412.66/x
  3. Step 3: Cross multiply
    12,904.26x = 19,342.38 × 5,412.66
  4. Step 4: Simplify right side
    12,904.26x = 104,693,726.53
  5. Step 5: Solve for x
    x = 104,693,726.53/12,904.26
  6. Step 6: Final answer
    x = 8,113.11

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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.