Home / 9,982.30-14,979.45-4,138.30

Finding the Fourth Proportional to 9,982.30, 14,979.45 and 4,138.30

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Solution

The fourth proportional to 9,982.30, 14,979.45 and 4,138.30 is: 6,209.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,982.30 : 14,979.45 = 4,138.30 : x
  2. Step 2: Convert to fraction form
    9,982.30/14,979.45 = 4,138.30/x
  3. Step 3: Cross multiply
    9,982.30x = 14,979.45 × 4,138.30
  4. Step 4: Simplify right side
    9,982.30x = 61,989,457.94
  5. Step 5: Solve for x
    x = 61,989,457.94/9,982.30
  6. Step 6: Final answer
    x = 6,209.94

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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.