Home / 11,834.64-16,331.04-7,121.52

Finding the Fourth Proportional to 11,834.64, 16,331.04 and 7,121.52

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Solution

The fourth proportional to 11,834.64, 16,331.04 and 7,121.52 is: 9,827.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,834.64 : 16,331.04 = 7,121.52 : x
  2. Step 2: Convert to fraction form
    11,834.64/16,331.04 = 7,121.52/x
  3. Step 3: Cross multiply
    11,834.64x = 16,331.04 × 7,121.52
  4. Step 4: Simplify right side
    11,834.64x = 116,301,827.98
  5. Step 5: Solve for x
    x = 116,301,827.98/11,834.64
  6. Step 6: Final answer
    x = 9,827.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.