Home / 14,219.92-21,297.30-6,829.60

Finding the Fourth Proportional to 14,219.92, 21,297.30 and 6,829.60

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Solution

The fourth proportional to 14,219.92, 21,297.30 and 6,829.60 is: 10,228.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,219.92 : 21,297.30 = 6,829.60 : x
  2. Step 2: Convert to fraction form
    14,219.92/21,297.30 = 6,829.60/x
  3. Step 3: Cross multiply
    14,219.92x = 21,297.30 × 6,829.60
  4. Step 4: Simplify right side
    14,219.92x = 145,452,040.08
  5. Step 5: Solve for x
    x = 145,452,040.08/14,219.92
  6. Step 6: Final answer
    x = 10,228.75

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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.