Home / 14,982.67-20,662.75-9,671.91

Finding the Fourth Proportional to 14,982.67, 20,662.75 and 9,671.91

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Solution

The fourth proportional to 14,982.67, 20,662.75 and 9,671.91 is: 13,338.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,982.67 : 20,662.75 = 9,671.91 : x
  2. Step 2: Convert to fraction form
    14,982.67/20,662.75 = 9,671.91/x
  3. Step 3: Cross multiply
    14,982.67x = 20,662.75 × 9,671.91
  4. Step 4: Simplify right side
    14,982.67x = 199,848,138.55
  5. Step 5: Solve for x
    x = 199,848,138.55/14,982.67
  6. Step 6: Final answer
    x = 13,338.62

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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.