Home / 11,998.51-18,002.96-6,445.37

Finding the Fourth Proportional to 11,998.51, 18,002.96 and 6,445.37

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Solution

The fourth proportional to 11,998.51, 18,002.96 and 6,445.37 is: 9,670.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,998.51 : 18,002.96 = 6,445.37 : x
  2. Step 2: Convert to fraction form
    11,998.51/18,002.96 = 6,445.37/x
  3. Step 3: Cross multiply
    11,998.51x = 18,002.96 × 6,445.37
  4. Step 4: Simplify right side
    11,998.51x = 116,035,738.30
  5. Step 5: Solve for x
    x = 116,035,738.30/11,998.51
  6. Step 6: Final answer
    x = 9,670.85

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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.