Home / 8,362.12-12,543.16-2,122.60

Finding the Fourth Proportional to 8,362.12, 12,543.16 and 2,122.60

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Solution

The fourth proportional to 8,362.12, 12,543.16 and 2,122.60 is: 3,183.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,362.12 : 12,543.16 = 2,122.60 : x
  2. Step 2: Convert to fraction form
    8,362.12/12,543.16 = 2,122.60/x
  3. Step 3: Cross multiply
    8,362.12x = 12,543.16 × 2,122.60
  4. Step 4: Simplify right side
    8,362.12x = 26,624,111.42
  5. Step 5: Solve for x
    x = 26,624,111.42/8,362.12
  6. Step 6: Final answer
    x = 3,183.89

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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.