Home / 18,515.64-25,525.02-13,201.23

Finding the Fourth Proportional to 18,515.64, 25,525.02 and 13,201.23

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Solution

The fourth proportional to 18,515.64, 25,525.02 and 13,201.23 is: 18,198.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,515.64 : 25,525.02 = 13,201.23 : x
  2. Step 2: Convert to fraction form
    18,515.64/25,525.02 = 13,201.23/x
  3. Step 3: Cross multiply
    18,515.64x = 25,525.02 × 13,201.23
  4. Step 4: Simplify right side
    18,515.64x = 336,961,659.77
  5. Step 5: Solve for x
    x = 336,961,659.77/18,515.64
  6. Step 6: Final answer
    x = 18,198.76

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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.