Home / 13,956.41-19,261.19-7,986.89

Finding the Fourth Proportional to 13,956.41, 19,261.19 and 7,986.89

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Solution

The fourth proportional to 13,956.41, 19,261.19 and 7,986.89 is: 11,022.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,956.41 : 19,261.19 = 7,986.89 : x
  2. Step 2: Convert to fraction form
    13,956.41/19,261.19 = 7,986.89/x
  3. Step 3: Cross multiply
    13,956.41x = 19,261.19 × 7,986.89
  4. Step 4: Simplify right side
    13,956.41x = 153,837,005.80
  5. Step 5: Solve for x
    x = 153,837,005.80/13,956.41
  6. Step 6: Final answer
    x = 11,022.68

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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.