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Finding the Fourth Proportional to 11,637.88, 17,425.83 and 7,947.32

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Solution

The fourth proportional to 11,637.88, 17,425.83 and 7,947.32 is: 11,899.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,637.88 : 17,425.83 = 7,947.32 : x
  2. Step 2: Convert to fraction form
    11,637.88/17,425.83 = 7,947.32/x
  3. Step 3: Cross multiply
    11,637.88x = 17,425.83 × 7,947.32
  4. Step 4: Simplify right side
    11,637.88x = 138,488,589.95
  5. Step 5: Solve for x
    x = 138,488,589.95/11,637.88
  6. Step 6: Final answer
    x = 11,899.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.