Home / 10,089.86-15,137.21-3,164.36

Finding the Fourth Proportional to 10,089.86, 15,137.21 and 3,164.36

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Solution

The fourth proportional to 10,089.86, 15,137.21 and 3,164.36 is: 4,747.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,089.86 : 15,137.21 = 3,164.36 : x
  2. Step 2: Convert to fraction form
    10,089.86/15,137.21 = 3,164.36/x
  3. Step 3: Cross multiply
    10,089.86x = 15,137.21 × 3,164.36
  4. Step 4: Simplify right side
    10,089.86x = 47,899,490.33
  5. Step 5: Solve for x
    x = 47,899,490.33/10,089.86
  6. Step 6: Final answer
    x = 4,747.29

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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.