Home / 18,651.95-25,739.69-10,268.45

Finding the Fourth Proportional to 18,651.95, 25,739.69 and 10,268.45

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Solution

The fourth proportional to 18,651.95, 25,739.69 and 10,268.45 is: 14,170.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,651.95 : 25,739.69 = 10,268.45 : x
  2. Step 2: Convert to fraction form
    18,651.95/25,739.69 = 10,268.45/x
  3. Step 3: Cross multiply
    18,651.95x = 25,739.69 × 10,268.45
  4. Step 4: Simplify right side
    18,651.95x = 264,306,719.78
  5. Step 5: Solve for x
    x = 264,306,719.78/18,651.95
  6. Step 6: Final answer
    x = 14,170.46

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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.