Home / 13,518.52-20,175.24-13,168.60

Finding the Fourth Proportional to 13,518.52, 20,175.24 and 13,168.60

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Solution

The fourth proportional to 13,518.52, 20,175.24 and 13,168.60 is: 19,653.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.52 : 20,175.24 = 13,168.60 : x
  2. Step 2: Convert to fraction form
    13,518.52/20,175.24 = 13,168.60/x
  3. Step 3: Cross multiply
    13,518.52x = 20,175.24 × 13,168.60
  4. Step 4: Simplify right side
    13,518.52x = 265,679,665.46
  5. Step 5: Solve for x
    x = 265,679,665.46/13,518.52
  6. Step 6: Final answer
    x = 19,653.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.