Home / 11,384.32-17,073.60-5,140.80

Finding the Fourth Proportional to 11,384.32, 17,073.60 and 5,140.80

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Solution

The fourth proportional to 11,384.32, 17,073.60 and 5,140.80 is: 7,709.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,384.32 : 17,073.60 = 5,140.80 : x
  2. Step 2: Convert to fraction form
    11,384.32/17,073.60 = 5,140.80/x
  3. Step 3: Cross multiply
    11,384.32x = 17,073.60 × 5,140.80
  4. Step 4: Simplify right side
    11,384.32x = 87,771,962.88
  5. Step 5: Solve for x
    x = 87,771,962.88/11,384.32
  6. Step 6: Final answer
    x = 7,709.90

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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.