Home / 10,203.74-15,309.94-5,581.34

Finding the Fourth Proportional to 10,203.74, 15,309.94 and 5,581.34

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Solution

The fourth proportional to 10,203.74, 15,309.94 and 5,581.34 is: 8,374.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,203.74 : 15,309.94 = 5,581.34 : x
  2. Step 2: Convert to fraction form
    10,203.74/15,309.94 = 5,581.34/x
  3. Step 3: Cross multiply
    10,203.74x = 15,309.94 × 5,581.34
  4. Step 4: Simplify right side
    10,203.74x = 85,449,980.52
  5. Step 5: Solve for x
    x = 85,449,980.52/10,203.74
  6. Step 6: Final answer
    x = 8,374.38

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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.