Home / 12,366.75-18,552.45-4,971.78

Finding the Fourth Proportional to 12,366.75, 18,552.45 and 4,971.78

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Solution

The fourth proportional to 12,366.75, 18,552.45 and 4,971.78 is: 7,458.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,366.75 : 18,552.45 = 4,971.78 : x
  2. Step 2: Convert to fraction form
    12,366.75/18,552.45 = 4,971.78/x
  3. Step 3: Cross multiply
    12,366.75x = 18,552.45 × 4,971.78
  4. Step 4: Simplify right side
    12,366.75x = 92,238,699.86
  5. Step 5: Solve for x
    x = 92,238,699.86/12,366.75
  6. Step 6: Final answer
    x = 7,458.60

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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.