Home / 12,724.74-19,068.69-8,771.94

Finding the Fourth Proportional to 12,724.74, 19,068.69 and 8,771.94

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Solution

The fourth proportional to 12,724.74, 19,068.69 and 8,771.94 is: 13,145.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,724.74 : 19,068.69 = 8,771.94 : x
  2. Step 2: Convert to fraction form
    12,724.74/19,068.69 = 8,771.94/x
  3. Step 3: Cross multiply
    12,724.74x = 19,068.69 × 8,771.94
  4. Step 4: Simplify right side
    12,724.74x = 167,269,404.56
  5. Step 5: Solve for x
    x = 167,269,404.56/12,724.74
  6. Step 6: Final answer
    x = 13,145.21

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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.