Home / 13,905.38-20,853.66-4,543.27

Finding the Fourth Proportional to 13,905.38, 20,853.66 and 4,543.27

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Solution

The fourth proportional to 13,905.38, 20,853.66 and 4,543.27 is: 6,813.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.38 : 20,853.66 = 4,543.27 : x
  2. Step 2: Convert to fraction form
    13,905.38/20,853.66 = 4,543.27/x
  3. Step 3: Cross multiply
    13,905.38x = 20,853.66 × 4,543.27
  4. Step 4: Simplify right side
    13,905.38x = 94,743,807.87
  5. Step 5: Solve for x
    x = 94,743,807.87/13,905.38
  6. Step 6: Final answer
    x = 6,813.46

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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.