Home / 11,213.43-15,474.11-6,430.07

Finding the Fourth Proportional to 11,213.43, 15,474.11 and 6,430.07

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Solution

The fourth proportional to 11,213.43, 15,474.11 and 6,430.07 is: 8,873.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,213.43 : 15,474.11 = 6,430.07 : x
  2. Step 2: Convert to fraction form
    11,213.43/15,474.11 = 6,430.07/x
  3. Step 3: Cross multiply
    11,213.43x = 15,474.11 × 6,430.07
  4. Step 4: Simplify right side
    11,213.43x = 99,499,665.25
  5. Step 5: Solve for x
    x = 99,499,665.25/11,213.43
  6. Step 6: Final answer
    x = 8,873.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.