Home / 13,174.32-18,187.20-10,183.40

Finding the Fourth Proportional to 13,174.32, 18,187.20 and 10,183.40

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Solution

The fourth proportional to 13,174.32, 18,187.20 and 10,183.40 is: 14,058.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,174.32 : 18,187.20 = 10,183.40 : x
  2. Step 2: Convert to fraction form
    13,174.32/18,187.20 = 10,183.40/x
  3. Step 3: Cross multiply
    13,174.32x = 18,187.20 × 10,183.40
  4. Step 4: Simplify right side
    13,174.32x = 185,207,532.48
  5. Step 5: Solve for x
    x = 185,207,532.48/13,174.32
  6. Step 6: Final answer
    x = 14,058.22

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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.