Home / 13,015.88-17,960.82-7,637.75

Finding the Fourth Proportional to 13,015.88, 17,960.82 and 7,637.75

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Solution

The fourth proportional to 13,015.88, 17,960.82 and 7,637.75 is: 10,539.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.88 : 17,960.82 = 7,637.75 : x
  2. Step 2: Convert to fraction form
    13,015.88/17,960.82 = 7,637.75/x
  3. Step 3: Cross multiply
    13,015.88x = 17,960.82 × 7,637.75
  4. Step 4: Simplify right side
    13,015.88x = 137,180,252.96
  5. Step 5: Solve for x
    x = 137,180,252.96/13,015.88
  6. Step 6: Final answer
    x = 10,539.45

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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.