Home / 13,169.96-18,174.56-7,504.46

Finding the Fourth Proportional to 13,169.96, 18,174.56 and 7,504.46

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Solution

The fourth proportional to 13,169.96, 18,174.56 and 7,504.46 is: 10,356.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,169.96 : 18,174.56 = 7,504.46 : x
  2. Step 2: Convert to fraction form
    13,169.96/18,174.56 = 7,504.46/x
  3. Step 3: Cross multiply
    13,169.96x = 18,174.56 × 7,504.46
  4. Step 4: Simplify right side
    13,169.96x = 136,390,130.14
  5. Step 5: Solve for x
    x = 136,390,130.14/13,169.96
  6. Step 6: Final answer
    x = 10,356.16

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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.