Home / 18,961.88-26,165.43-11,002.56

Finding the Fourth Proportional to 18,961.88, 26,165.43 and 11,002.56

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Solution

The fourth proportional to 18,961.88, 26,165.43 and 11,002.56 is: 15,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,961.88 : 26,165.43 = 11,002.56 : x
  2. Step 2: Convert to fraction form
    18,961.88/26,165.43 = 11,002.56/x
  3. Step 3: Cross multiply
    18,961.88x = 26,165.43 × 11,002.56
  4. Step 4: Simplify right side
    18,961.88x = 287,886,713.50
  5. Step 5: Solve for x
    x = 287,886,713.50/18,961.88
  6. Step 6: Final answer
    x = 15,182.40

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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.