Home / 18,886.41-28,333.26-6,408.59

Finding the Fourth Proportional to 18,886.41, 28,333.26 and 6,408.59

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Solution

The fourth proportional to 18,886.41, 28,333.26 and 6,408.59 is: 9,614.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,886.41 : 28,333.26 = 6,408.59 : x
  2. Step 2: Convert to fraction form
    18,886.41/28,333.26 = 6,408.59/x
  3. Step 3: Cross multiply
    18,886.41x = 28,333.26 × 6,408.59
  4. Step 4: Simplify right side
    18,886.41x = 181,576,105.04
  5. Step 5: Solve for x
    x = 181,576,105.04/18,886.41
  6. Step 6: Final answer
    x = 9,614.11

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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.