Home / 19,319.43-28,975.72-8,786.99

Finding the Fourth Proportional to 19,319.43, 28,975.72 and 8,786.99

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Solution

The fourth proportional to 19,319.43, 28,975.72 and 8,786.99 is: 13,178.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,319.43 : 28,975.72 = 8,786.99 : x
  2. Step 2: Convert to fraction form
    19,319.43/28,975.72 = 8,786.99/x
  3. Step 3: Cross multiply
    19,319.43x = 28,975.72 × 8,786.99
  4. Step 4: Simplify right side
    19,319.43x = 254,609,361.88
  5. Step 5: Solve for x
    x = 254,609,361.88/19,319.43
  6. Step 6: Final answer
    x = 13,178.93

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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.