Home / 18,729.51-25,847.50-10,771.74

Finding the Fourth Proportional to 18,729.51, 25,847.50 and 10,771.74

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Solution

The fourth proportional to 18,729.51, 25,847.50 and 10,771.74 is: 14,865.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,729.51 : 25,847.50 = 10,771.74 : x
  2. Step 2: Convert to fraction form
    18,729.51/25,847.50 = 10,771.74/x
  3. Step 3: Cross multiply
    18,729.51x = 25,847.50 × 10,771.74
  4. Step 4: Simplify right side
    18,729.51x = 278,422,420.41
  5. Step 5: Solve for x
    x = 278,422,420.41/18,729.51
  6. Step 6: Final answer
    x = 14,865.44

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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.