Home / 18,248.37-25,175.36-12,878.60

Finding the Fourth Proportional to 18,248.37, 25,175.36 and 12,878.60

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Solution

The fourth proportional to 18,248.37, 25,175.36 and 12,878.60 is: 17,767.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,248.37 : 25,175.36 = 12,878.60 : x
  2. Step 2: Convert to fraction form
    18,248.37/25,175.36 = 12,878.60/x
  3. Step 3: Cross multiply
    18,248.37x = 25,175.36 × 12,878.60
  4. Step 4: Simplify right side
    18,248.37x = 324,223,201.03
  5. Step 5: Solve for x
    x = 324,223,201.03/18,248.37
  6. Step 6: Final answer
    x = 17,767.24

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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.