Home / 18,955.56-26,153.88-11,399.46

Finding the Fourth Proportional to 18,955.56, 26,153.88 and 11,399.46

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Solution

The fourth proportional to 18,955.56, 26,153.88 and 11,399.46 is: 15,728.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,955.56 : 26,153.88 = 11,399.46 : x
  2. Step 2: Convert to fraction form
    18,955.56/26,153.88 = 11,399.46/x
  3. Step 3: Cross multiply
    18,955.56x = 26,153.88 × 11,399.46
  4. Step 4: Simplify right side
    18,955.56x = 298,140,108.90
  5. Step 5: Solve for x
    x = 298,140,108.90/18,955.56
  6. Step 6: Final answer
    x = 15,728.37

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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.