Home / 14,639.70-20,201.49-8,671.38

Finding the Fourth Proportional to 14,639.70, 20,201.49 and 8,671.38

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Solution

The fourth proportional to 14,639.70, 20,201.49 and 8,671.38 is: 11,965.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,639.70 : 20,201.49 = 8,671.38 : x
  2. Step 2: Convert to fraction form
    14,639.70/20,201.49 = 8,671.38/x
  3. Step 3: Cross multiply
    14,639.70x = 20,201.49 × 8,671.38
  4. Step 4: Simplify right side
    14,639.70x = 175,174,796.36
  5. Step 5: Solve for x
    x = 175,174,796.36/14,639.70
  6. Step 6: Final answer
    x = 11,965.74

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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.