Home / 11,399.90-17,089.40-4,000.32

Finding the Fourth Proportional to 11,399.90, 17,089.40 and 4,000.32

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Solution

The fourth proportional to 11,399.90, 17,089.40 and 4,000.32 is: 5,996.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,399.90 : 17,089.40 = 4,000.32 : x
  2. Step 2: Convert to fraction form
    11,399.90/17,089.40 = 4,000.32/x
  3. Step 3: Cross multiply
    11,399.90x = 17,089.40 × 4,000.32
  4. Step 4: Simplify right side
    11,399.90x = 68,363,078.61
  5. Step 5: Solve for x
    x = 68,363,078.61/11,399.90
  6. Step 6: Final answer
    x = 5,996.82

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1.5x scale

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.