Home / 11,487.70-17,231.55-4,092.40

Finding the Fourth Proportional to 11,487.70, 17,231.55 and 4,092.40

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Solution

The fourth proportional to 11,487.70, 17,231.55 and 4,092.40 is: 6,138.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,487.70 : 17,231.55 = 4,092.40 : x
  2. Step 2: Convert to fraction form
    11,487.70/17,231.55 = 4,092.40/x
  3. Step 3: Cross multiply
    11,487.70x = 17,231.55 × 4,092.40
  4. Step 4: Simplify right side
    11,487.70x = 70,518,395.22
  5. Step 5: Solve for x
    x = 70,518,395.22/11,487.70
  6. Step 6: Final answer
    x = 6,138.60

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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.