Home / 10,979.21-16,466.95-3,957.83

Finding the Fourth Proportional to 10,979.21, 16,466.95 and 3,957.83

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Solution

The fourth proportional to 10,979.21, 16,466.95 and 3,957.83 is: 5,936.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.21 : 16,466.95 = 3,957.83 : x
  2. Step 2: Convert to fraction form
    10,979.21/16,466.95 = 3,957.83/x
  3. Step 3: Cross multiply
    10,979.21x = 16,466.95 × 3,957.83
  4. Step 4: Simplify right side
    10,979.21x = 65,173,373.08
  5. Step 5: Solve for x
    x = 65,173,373.08/10,979.21
  6. Step 6: Final answer
    x = 5,936.07

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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.