Home / 13,334.10-18,399.96-7,668.56

Finding the Fourth Proportional to 13,334.10, 18,399.96 and 7,668.56

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Solution

The fourth proportional to 13,334.10, 18,399.96 and 7,668.56 is: 10,581.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,334.10 : 18,399.96 = 7,668.56 : x
  2. Step 2: Convert to fraction form
    13,334.10/18,399.96 = 7,668.56/x
  3. Step 3: Cross multiply
    13,334.10x = 18,399.96 × 7,668.56
  4. Step 4: Simplify right side
    13,334.10x = 141,101,197.26
  5. Step 5: Solve for x
    x = 141,101,197.26/13,334.10
  6. Step 6: Final answer
    x = 10,581.98

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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.