Home / 18,467.36-25,477.44-12,881.60

Finding the Fourth Proportional to 18,467.36, 25,477.44 and 12,881.60

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Solution

The fourth proportional to 18,467.36, 25,477.44 and 12,881.60 is: 17,771.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,467.36 : 25,477.44 = 12,881.60 : x
  2. Step 2: Convert to fraction form
    18,467.36/25,477.44 = 12,881.60/x
  3. Step 3: Cross multiply
    18,467.36x = 25,477.44 × 12,881.60
  4. Step 4: Simplify right side
    18,467.36x = 328,190,191.10
  5. Step 5: Solve for x
    x = 328,190,191.10/18,467.36
  6. Step 6: Final answer
    x = 17,771.36

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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.