Home / 13,416.69-20,118.56-5,623.41

Finding the Fourth Proportional to 13,416.69, 20,118.56 and 5,623.41

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Solution

The fourth proportional to 13,416.69, 20,118.56 and 5,623.41 is: 8,432.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,416.69 : 20,118.56 = 5,623.41 : x
  2. Step 2: Convert to fraction form
    13,416.69/20,118.56 = 5,623.41/x
  3. Step 3: Cross multiply
    13,416.69x = 20,118.56 × 5,623.41
  4. Step 4: Simplify right side
    13,416.69x = 113,134,883.37
  5. Step 5: Solve for x
    x = 113,134,883.37/13,416.69
  6. Step 6: Final answer
    x = 8,432.40

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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.