Home / 13,763.48-18,993.90-8,455.24

Finding the Fourth Proportional to 13,763.48, 18,993.90 and 8,455.24

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Solution

The fourth proportional to 13,763.48, 18,993.90 and 8,455.24 is: 11,668.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.48 : 18,993.90 = 8,455.24 : x
  2. Step 2: Convert to fraction form
    13,763.48/18,993.90 = 8,455.24/x
  3. Step 3: Cross multiply
    13,763.48x = 18,993.90 × 8,455.24
  4. Step 4: Simplify right side
    13,763.48x = 160,597,983.04
  5. Step 5: Solve for x
    x = 160,597,983.04/13,763.48
  6. Step 6: Final answer
    x = 11,668.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.