Home / 13,448.10-18,549.75-8,674.14

Finding the Fourth Proportional to 13,448.10, 18,549.75 and 8,674.14

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Solution

The fourth proportional to 13,448.10, 18,549.75 and 8,674.14 is: 11,964.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,448.10 : 18,549.75 = 8,674.14 : x
  2. Step 2: Convert to fraction form
    13,448.10/18,549.75 = 8,674.14/x
  3. Step 3: Cross multiply
    13,448.10x = 18,549.75 × 8,674.14
  4. Step 4: Simplify right side
    13,448.10x = 160,903,128.47
  5. Step 5: Solve for x
    x = 160,903,128.47/13,448.10
  6. Step 6: Final answer
    x = 11,964.75

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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.