Home / 18,225.82-25,152.72-11,153.62

Finding the Fourth Proportional to 18,225.82, 25,152.72 and 11,153.62

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Solution

The fourth proportional to 18,225.82, 25,152.72 and 11,153.62 is: 15,392.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,225.82 : 25,152.72 = 11,153.62 : x
  2. Step 2: Convert to fraction form
    18,225.82/25,152.72 = 11,153.62/x
  3. Step 3: Cross multiply
    18,225.82x = 25,152.72 × 11,153.62
  4. Step 4: Simplify right side
    18,225.82x = 280,543,880.85
  5. Step 5: Solve for x
    x = 280,543,880.85/18,225.82
  6. Step 6: Final answer
    x = 15,392.66

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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.