Home / 13,788.27-20,682.54-5,470.29

Finding the Fourth Proportional to 13,788.27, 20,682.54 and 5,470.29

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Solution

The fourth proportional to 13,788.27, 20,682.54 and 5,470.29 is: 8,205.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.27 : 20,682.54 = 5,470.29 : x
  2. Step 2: Convert to fraction form
    13,788.27/20,682.54 = 5,470.29/x
  3. Step 3: Cross multiply
    13,788.27x = 20,682.54 × 5,470.29
  4. Step 4: Simplify right side
    13,788.27x = 113,139,491.74
  5. Step 5: Solve for x
    x = 113,139,491.74/13,788.27
  6. Step 6: Final answer
    x = 8,205.49

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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.