Home / 8,199.72-11,312.94-4,841.40

Finding the Fourth Proportional to 8,199.72, 11,312.94 and 4,841.40

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Solution

The fourth proportional to 8,199.72, 11,312.94 and 4,841.40 is: 6,679.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,199.72 : 11,312.94 = 4,841.40 : x
  2. Step 2: Convert to fraction form
    8,199.72/11,312.94 = 4,841.40/x
  3. Step 3: Cross multiply
    8,199.72x = 11,312.94 × 4,841.40
  4. Step 4: Simplify right side
    8,199.72x = 54,770,467.72
  5. Step 5: Solve for x
    x = 54,770,467.72/8,199.72
  6. Step 6: Final answer
    x = 6,679.55

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1.5x scale

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.