Home / 18,518.88-25,525.40-13,801.44

Finding the Fourth Proportional to 18,518.88, 25,525.40 and 13,801.44

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Solution

The fourth proportional to 18,518.88, 25,525.40 and 13,801.44 is: 19,023.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,518.88 : 25,525.40 = 13,801.44 : x
  2. Step 2: Convert to fraction form
    18,518.88/25,525.40 = 13,801.44/x
  3. Step 3: Cross multiply
    18,518.88x = 25,525.40 × 13,801.44
  4. Step 4: Simplify right side
    18,518.88x = 352,287,276.58
  5. Step 5: Solve for x
    x = 352,287,276.58/18,518.88
  6. Step 6: Final answer
    x = 19,023.14

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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.