Home / 10,415.83-15,623.82-3,490.33

Finding the Fourth Proportional to 10,415.83, 15,623.82 and 3,490.33

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Solution

The fourth proportional to 10,415.83, 15,623.82 and 3,490.33 is: 5,235.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,415.83 : 15,623.82 = 3,490.33 : x
  2. Step 2: Convert to fraction form
    10,415.83/15,623.82 = 3,490.33/x
  3. Step 3: Cross multiply
    10,415.83x = 15,623.82 × 3,490.33
  4. Step 4: Simplify right side
    10,415.83x = 54,532,287.66
  5. Step 5: Solve for x
    x = 54,532,287.66/10,415.83
  6. Step 6: Final answer
    x = 5,235.52

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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.