Home / 10,979.40-16,469.10-4,056.60

Finding the Fourth Proportional to 10,979.40, 16,469.10 and 4,056.60

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Solution

The fourth proportional to 10,979.40, 16,469.10 and 4,056.60 is: 6,084.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.40 : 16,469.10 = 4,056.60 : x
  2. Step 2: Convert to fraction form
    10,979.40/16,469.10 = 4,056.60/x
  3. Step 3: Cross multiply
    10,979.40x = 16,469.10 × 4,056.60
  4. Step 4: Simplify right side
    10,979.40x = 66,808,551.06
  5. Step 5: Solve for x
    x = 66,808,551.06/10,979.40
  6. Step 6: Final answer
    x = 6,084.90

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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.