Home / 11,423.75-17,138.15-4,855.55

Finding the Fourth Proportional to 11,423.75, 17,138.15 and 4,855.55

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Solution

The fourth proportional to 11,423.75, 17,138.15 and 4,855.55 is: 7,284.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,423.75 : 17,138.15 = 4,855.55 : x
  2. Step 2: Convert to fraction form
    11,423.75/17,138.15 = 4,855.55/x
  3. Step 3: Cross multiply
    11,423.75x = 17,138.15 × 4,855.55
  4. Step 4: Simplify right side
    11,423.75x = 83,215,144.23
  5. Step 5: Solve for x
    x = 83,215,144.23/11,423.75
  6. Step 6: Final answer
    x = 7,284.40

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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.