Home / 13,818.21-20,729.37-4,932.84

Finding the Fourth Proportional to 13,818.21, 20,729.37 and 4,932.84

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Solution

The fourth proportional to 13,818.21, 20,729.37 and 4,932.84 is: 7,399.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.21 : 20,729.37 = 4,932.84 : x
  2. Step 2: Convert to fraction form
    13,818.21/20,729.37 = 4,932.84/x
  3. Step 3: Cross multiply
    13,818.21x = 20,729.37 × 4,932.84
  4. Step 4: Simplify right side
    13,818.21x = 102,254,665.51
  5. Step 5: Solve for x
    x = 102,254,665.51/13,818.21
  6. Step 6: Final answer
    x = 7,399.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.