Home / 12,145.33-18,202.21-5,476.93

Finding the Fourth Proportional to 12,145.33, 18,202.21 and 5,476.93

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Solution

The fourth proportional to 12,145.33, 18,202.21 and 5,476.93 is: 8,208.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145.33 : 18,202.21 = 5,476.93 : x
  2. Step 2: Convert to fraction form
    12,145.33/18,202.21 = 5,476.93/x
  3. Step 3: Cross multiply
    12,145.33x = 18,202.21 × 5,476.93
  4. Step 4: Simplify right side
    12,145.33x = 99,692,191.36
  5. Step 5: Solve for x
    x = 99,692,191.36/12,145.33
  6. Step 6: Final answer
    x = 8,208.28

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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.