Home / 19,019.25-28,528.34-8,486.55

Finding the Fourth Proportional to 19,019.25, 28,528.34 and 8,486.55

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Solution

The fourth proportional to 19,019.25, 28,528.34 and 8,486.55 is: 12,729.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,019.25 : 28,528.34 = 8,486.55 : x
  2. Step 2: Convert to fraction form
    19,019.25/28,528.34 = 8,486.55/x
  3. Step 3: Cross multiply
    19,019.25x = 28,528.34 × 8,486.55
  4. Step 4: Simplify right side
    19,019.25x = 242,107,141.39
  5. Step 5: Solve for x
    x = 242,107,141.39/19,019.25
  6. Step 6: Final answer
    x = 12,729.58

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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.