Home / 12,122.24-18,173.54-5,453.84

Finding the Fourth Proportional to 12,122.24, 18,173.54 and 5,453.84

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Solution

The fourth proportional to 12,122.24, 18,173.54 and 5,453.84 is: 8,176.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122.24 : 18,173.54 = 5,453.84 : x
  2. Step 2: Convert to fraction form
    12,122.24/18,173.54 = 5,453.84/x
  3. Step 3: Cross multiply
    12,122.24x = 18,173.54 × 5,453.84
  4. Step 4: Simplify right side
    12,122.24x = 99,115,461.26
  5. Step 5: Solve for x
    x = 99,115,461.26/12,122.24
  6. Step 6: Final answer
    x = 8,176.34

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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.