Home / 18,685.63-28,028.37-6,206.59

Finding the Fourth Proportional to 18,685.63, 28,028.37 and 6,206.59

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Solution

The fourth proportional to 18,685.63, 28,028.37 and 6,206.59 is: 9,309.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,685.63 : 28,028.37 = 6,206.59 : x
  2. Step 2: Convert to fraction form
    18,685.63/28,028.37 = 6,206.59/x
  3. Step 3: Cross multiply
    18,685.63x = 28,028.37 × 6,206.59
  4. Step 4: Simplify right side
    18,685.63x = 173,960,600.96
  5. Step 5: Solve for x
    x = 173,960,600.96/18,685.63
  6. Step 6: Final answer
    x = 9,309.86

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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.