Home / 13,474.18-18,606.13-8,447.06

Finding the Fourth Proportional to 13,474.18, 18,606.13 and 8,447.06

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Solution

The fourth proportional to 13,474.18, 18,606.13 and 8,447.06 is: 11,664.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,474.18 : 18,606.13 = 8,447.06 : x
  2. Step 2: Convert to fraction form
    13,474.18/18,606.13 = 8,447.06/x
  3. Step 3: Cross multiply
    13,474.18x = 18,606.13 × 8,447.06
  4. Step 4: Simplify right side
    13,474.18x = 157,167,096.48
  5. Step 5: Solve for x
    x = 157,167,096.48/13,474.18
  6. Step 6: Final answer
    x = 11,664.32

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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.