Home / 13,543.25-20,285.42-11,176.74

Finding the Fourth Proportional to 13,543.25, 20,285.42 and 11,176.74

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Solution

The fourth proportional to 13,543.25, 20,285.42 and 11,176.74 is: 16,740.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,543.25 : 20,285.42 = 11,176.74 : x
  2. Step 2: Convert to fraction form
    13,543.25/20,285.42 = 11,176.74/x
  3. Step 3: Cross multiply
    13,543.25x = 20,285.42 × 11,176.74
  4. Step 4: Simplify right side
    13,543.25x = 226,724,809.25
  5. Step 5: Solve for x
    x = 226,724,809.25/13,543.25
  6. Step 6: Final answer
    x = 16,740.80

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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.