Home / 13,313.21-18,373.19-7,648.88

Finding the Fourth Proportional to 13,313.21, 18,373.19 and 7,648.88

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Solution

The fourth proportional to 13,313.21, 18,373.19 and 7,648.88 is: 10,556.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.21 : 18,373.19 = 7,648.88 : x
  2. Step 2: Convert to fraction form
    13,313.21/18,373.19 = 7,648.88/x
  3. Step 3: Cross multiply
    13,313.21x = 18,373.19 × 7,648.88
  4. Step 4: Simplify right side
    13,313.21x = 140,534,195.42
  5. Step 5: Solve for x
    x = 140,534,195.42/13,313.21
  6. Step 6: Final answer
    x = 10,556.00

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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.