Home / 18,938.88-26,133.12-11,485.44

Finding the Fourth Proportional to 18,938.88, 26,133.12 and 11,485.44

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Solution

The fourth proportional to 18,938.88, 26,133.12 and 11,485.44 is: 15,848.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,938.88 : 26,133.12 = 11,485.44 : x
  2. Step 2: Convert to fraction form
    18,938.88/26,133.12 = 11,485.44/x
  3. Step 3: Cross multiply
    18,938.88x = 26,133.12 × 11,485.44
  4. Step 4: Simplify right side
    18,938.88x = 300,150,381.77
  5. Step 5: Solve for x
    x = 300,150,381.77/18,938.88
  6. Step 6: Final answer
    x = 15,848.37

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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.