Home / 10,078.96-15,118.45-3,837.50

Finding the Fourth Proportional to 10,078.96, 15,118.45 and 3,837.50

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Solution

The fourth proportional to 10,078.96, 15,118.45 and 3,837.50 is: 5,756.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,078.96 : 15,118.45 = 3,837.50 : x
  2. Step 2: Convert to fraction form
    10,078.96/15,118.45 = 3,837.50/x
  3. Step 3: Cross multiply
    10,078.96x = 15,118.45 × 3,837.50
  4. Step 4: Simplify right side
    10,078.96x = 58,017,051.88
  5. Step 5: Solve for x
    x = 58,017,051.88/10,078.96
  6. Step 6: Final answer
    x = 5,756.25

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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.