Home / 13,641.36-20,453.27-5,748.99

Finding the Fourth Proportional to 13,641.36, 20,453.27 and 5,748.99

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Solution

The fourth proportional to 13,641.36, 20,453.27 and 5,748.99 is: 8,619.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,641.36 : 20,453.27 = 5,748.99 : x
  2. Step 2: Convert to fraction form
    13,641.36/20,453.27 = 5,748.99/x
  3. Step 3: Cross multiply
    13,641.36x = 20,453.27 × 5,748.99
  4. Step 4: Simplify right side
    13,641.36x = 117,585,615.95
  5. Step 5: Solve for x
    x = 117,585,615.95/13,641.36
  6. Step 6: Final answer
    x = 8,619.79

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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.