Home / 13,015.88-17,961.93-7,047.55

Finding the Fourth Proportional to 13,015.88, 17,961.93 and 7,047.55

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Solution

The fourth proportional to 13,015.88, 17,961.93 and 7,047.55 is: 9,725.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.88 : 17,961.93 = 7,047.55 : x
  2. Step 2: Convert to fraction form
    13,015.88/17,961.93 = 7,047.55/x
  3. Step 3: Cross multiply
    13,015.88x = 17,961.93 × 7,047.55
  4. Step 4: Simplify right side
    13,015.88x = 126,587,564.53
  5. Step 5: Solve for x
    x = 126,587,564.53/13,015.88
  6. Step 6: Final answer
    x = 9,725.62

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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.