Home / 9,985.28-14,979.60-3,322.15

Finding the Fourth Proportional to 9,985.28, 14,979.60 and 3,322.15

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Solution

The fourth proportional to 9,985.28, 14,979.60 and 3,322.15 is: 4,983.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,985.28 : 14,979.60 = 3,322.15 : x
  2. Step 2: Convert to fraction form
    9,985.28/14,979.60 = 3,322.15/x
  3. Step 3: Cross multiply
    9,985.28x = 14,979.60 × 3,322.15
  4. Step 4: Simplify right side
    9,985.28x = 49,764,440.69
  5. Step 5: Solve for x
    x = 49,764,440.69/9,985.28
  6. Step 6: Final answer
    x = 4,983.78

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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.