Home / 18,739.82-25,860.90-10,356.32

Finding the Fourth Proportional to 18,739.82, 25,860.90 and 10,356.32

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Solution

The fourth proportional to 18,739.82, 25,860.90 and 10,356.32 is: 14,291.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,739.82 : 25,860.90 = 10,356.32 : x
  2. Step 2: Convert to fraction form
    18,739.82/25,860.90 = 10,356.32/x
  3. Step 3: Cross multiply
    18,739.82x = 25,860.90 × 10,356.32
  4. Step 4: Simplify right side
    18,739.82x = 267,823,755.89
  5. Step 5: Solve for x
    x = 267,823,755.89/18,739.82
  6. Step 6: Final answer
    x = 14,291.69

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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.