Home / 13,176.60-18,190.32-10,185.68

Finding the Fourth Proportional to 13,176.60, 18,190.32 and 10,185.68

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Solution

The fourth proportional to 13,176.60, 18,190.32 and 10,185.68 is: 14,061.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.60 : 18,190.32 = 10,185.68 : x
  2. Step 2: Convert to fraction form
    13,176.60/18,190.32 = 10,185.68/x
  3. Step 3: Cross multiply
    13,176.60x = 18,190.32 × 10,185.68
  4. Step 4: Simplify right side
    13,176.60x = 185,280,778.62
  5. Step 5: Solve for x
    x = 185,280,778.62/13,176.60
  6. Step 6: Final answer
    x = 14,061.35

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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.