Home / 12,024.70-18,024.90-5,455.60

Finding the Fourth Proportional to 12,024.70, 18,024.90 and 5,455.60

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Solution

The fourth proportional to 12,024.70, 18,024.90 and 5,455.60 is: 8,177.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,024.70 : 18,024.90 = 5,455.60 : x
  2. Step 2: Convert to fraction form
    12,024.70/18,024.90 = 5,455.60/x
  3. Step 3: Cross multiply
    12,024.70x = 18,024.90 × 5,455.60
  4. Step 4: Simplify right side
    12,024.70x = 98,336,644.44
  5. Step 5: Solve for x
    x = 98,336,644.44/12,024.70
  6. Step 6: Final answer
    x = 8,177.89

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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.