Home / 8,074.84-11,138.82-5,423.98

Finding the Fourth Proportional to 8,074.84, 11,138.82 and 5,423.98

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Solution

The fourth proportional to 8,074.84, 11,138.82 and 5,423.98 is: 7,482.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,074.84 : 11,138.82 = 5,423.98 : x
  2. Step 2: Convert to fraction form
    8,074.84/11,138.82 = 5,423.98/x
  3. Step 3: Cross multiply
    8,074.84x = 11,138.82 × 5,423.98
  4. Step 4: Simplify right side
    8,074.84x = 60,416,736.90
  5. Step 5: Solve for x
    x = 60,416,736.90/8,074.84
  6. Step 6: Final answer
    x = 7,482.10

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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.