Home / 18,735.68-25,851.48-10,778.24

Finding the Fourth Proportional to 18,735.68, 25,851.48 and 10,778.24

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Solution

The fourth proportional to 18,735.68, 25,851.48 and 10,778.24 is: 14,871.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,735.68 : 25,851.48 = 10,778.24 : x
  2. Step 2: Convert to fraction form
    18,735.68/25,851.48 = 10,778.24/x
  3. Step 3: Cross multiply
    18,735.68x = 25,851.48 × 10,778.24
  4. Step 4: Simplify right side
    18,735.68x = 278,633,455.80
  5. Step 5: Solve for x
    x = 278,633,455.80/18,735.68
  6. Step 6: Final answer
    x = 14,871.81

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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.