Home / 18,739.68-25,860.60-10,356.12

Finding the Fourth Proportional to 18,739.68, 25,860.60 and 10,356.12

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Solution

The fourth proportional to 18,739.68, 25,860.60 and 10,356.12 is: 14,291.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,739.68 : 25,860.60 = 10,356.12 : x
  2. Step 2: Convert to fraction form
    18,739.68/25,860.60 = 10,356.12/x
  3. Step 3: Cross multiply
    18,739.68x = 25,860.60 × 10,356.12
  4. Step 4: Simplify right side
    18,739.68x = 267,815,476.87
  5. Step 5: Solve for x
    x = 267,815,476.87/18,739.68
  6. Step 6: Final answer
    x = 14,291.36

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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.