Home / 9,917.40-14,869.62-4,979.64

Finding the Fourth Proportional to 9,917.40, 14,869.62 and 4,979.64

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Solution

The fourth proportional to 9,917.40, 14,869.62 and 4,979.64 is: 7,466.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,917.40 : 14,869.62 = 4,979.64 : x
  2. Step 2: Convert to fraction form
    9,917.40/14,869.62 = 4,979.64/x
  3. Step 3: Cross multiply
    9,917.40x = 14,869.62 × 4,979.64
  4. Step 4: Simplify right side
    9,917.40x = 74,045,354.54
  5. Step 5: Solve for x
    x = 74,045,354.54/9,917.40
  6. Step 6: Final answer
    x = 7,466.21

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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.