Home / 13,668.37-18,862.26-7,699.88

Finding the Fourth Proportional to 13,668.37, 18,862.26 and 7,699.88

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Solution

The fourth proportional to 13,668.37, 18,862.26 and 7,699.88 is: 10,625.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,668.37 : 18,862.26 = 7,699.88 : x
  2. Step 2: Convert to fraction form
    13,668.37/18,862.26 = 7,699.88/x
  3. Step 3: Cross multiply
    13,668.37x = 18,862.26 × 7,699.88
  4. Step 4: Simplify right side
    13,668.37x = 145,237,138.53
  5. Step 5: Solve for x
    x = 145,237,138.53/13,668.37
  6. Step 6: Final answer
    x = 10,625.78

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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.