Home / 10,673.21-16,017.68-5,129.75

Finding the Fourth Proportional to 10,673.21, 16,017.68 and 5,129.75

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Solution

The fourth proportional to 10,673.21, 16,017.68 and 5,129.75 is: 7,698.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,673.21 : 16,017.68 = 5,129.75 : x
  2. Step 2: Convert to fraction form
    10,673.21/16,017.68 = 5,129.75/x
  3. Step 3: Cross multiply
    10,673.21x = 16,017.68 × 5,129.75
  4. Step 4: Simplify right side
    10,673.21x = 82,166,626.72
  5. Step 5: Solve for x
    x = 82,166,626.72/10,673.21
  6. Step 6: Final answer
    x = 7,698.40

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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.