Home / 18,741.86-25,865.62-10,784.42

Finding the Fourth Proportional to 18,741.86, 25,865.62 and 10,784.42

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Solution

The fourth proportional to 18,741.86, 25,865.62 and 10,784.42 is: 14,883.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,741.86 : 25,865.62 = 10,784.42 : x
  2. Step 2: Convert to fraction form
    18,741.86/25,865.62 = 10,784.42/x
  3. Step 3: Cross multiply
    18,741.86x = 25,865.62 × 10,784.42
  4. Step 4: Simplify right side
    18,741.86x = 278,945,709.64
  5. Step 5: Solve for x
    x = 278,945,709.64/18,741.86
  6. Step 6: Final answer
    x = 14,883.57

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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.