Home / 10,078.48-15,102.32-4,231.88

Finding the Fourth Proportional to 10,078.48, 15,102.32 and 4,231.88

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Solution

The fourth proportional to 10,078.48, 15,102.32 and 4,231.88 is: 6,341.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,078.48 : 15,102.32 = 4,231.88 : x
  2. Step 2: Convert to fraction form
    10,078.48/15,102.32 = 4,231.88/x
  3. Step 3: Cross multiply
    10,078.48x = 15,102.32 × 4,231.88
  4. Step 4: Simplify right side
    10,078.48x = 63,911,205.96
  5. Step 5: Solve for x
    x = 63,911,205.96/10,078.48
  6. Step 6: Final answer
    x = 6,341.35

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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.