Home / 12,087.68-18,113.99-8,584.55

Finding the Fourth Proportional to 12,087.68, 18,113.99 and 8,584.55

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Solution

The fourth proportional to 12,087.68, 18,113.99 and 8,584.55 is: 12,864.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087.68 : 18,113.99 = 8,584.55 : x
  2. Step 2: Convert to fraction form
    12,087.68/18,113.99 = 8,584.55/x
  3. Step 3: Cross multiply
    12,087.68x = 18,113.99 × 8,584.55
  4. Step 4: Simplify right side
    12,087.68x = 155,500,319.36
  5. Step 5: Solve for x
    x = 155,500,319.36/12,087.68
  6. Step 6: Final answer
    x = 12,864.37

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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.