Home / 16,286.34-22,455.45-13,764

Finding the Fourth Proportional to 16,286.34, 22,455.45 and 13,764

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Solution

The fourth proportional to 16,286.34, 22,455.45 and 13,764 is: 18,977.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,286.34 : 22,455.45 = 13,764 : x
  2. Step 2: Convert to fraction form
    16,286.34/22,455.45 = 13,764/x
  3. Step 3: Cross multiply
    16,286.34x = 22,455.45 × 13,764
  4. Step 4: Simplify right side
    16,286.34x = 309,076,813.80
  5. Step 5: Solve for x
    x = 309,076,813.80/16,286.34
  6. Step 6: Final answer
    x = 18,977.67

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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.