Home / 11,970.06-17,955.99-4,176.78

Finding the Fourth Proportional to 11,970.06, 17,955.99 and 4,176.78

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Solution

The fourth proportional to 11,970.06, 17,955.99 and 4,176.78 is: 6,265.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,970.06 : 17,955.99 = 4,176.78 : x
  2. Step 2: Convert to fraction form
    11,970.06/17,955.99 = 4,176.78/x
  3. Step 3: Cross multiply
    11,970.06x = 17,955.99 × 4,176.78
  4. Step 4: Simplify right side
    11,970.06x = 74,998,219.91
  5. Step 5: Solve for x
    x = 74,998,219.91/11,970.06
  6. Step 6: Final answer
    x = 6,265.48

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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.