Home / 9,219.78-13,828.12-3,955.62

Finding the Fourth Proportional to 9,219.78, 13,828.12 and 3,955.62

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Solution

The fourth proportional to 9,219.78, 13,828.12 and 3,955.62 is: 5,932.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,219.78 : 13,828.12 = 3,955.62 : x
  2. Step 2: Convert to fraction form
    9,219.78/13,828.12 = 3,955.62/x
  3. Step 3: Cross multiply
    9,219.78x = 13,828.12 × 3,955.62
  4. Step 4: Simplify right side
    9,219.78x = 54,698,788.03
  5. Step 5: Solve for x
    x = 54,698,788.03/9,219.78
  6. Step 6: Final answer
    x = 5,932.76

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1.5x scale

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.