Home / 13,681.56-18,877.86-8,092.92

Finding the Fourth Proportional to 13,681.56, 18,877.86 and 8,092.92

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Solution

The fourth proportional to 13,681.56, 18,877.86 and 8,092.92 is: 11,166.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,681.56 : 18,877.86 = 8,092.92 : x
  2. Step 2: Convert to fraction form
    13,681.56/18,877.86 = 8,092.92/x
  3. Step 3: Cross multiply
    13,681.56x = 18,877.86 × 8,092.92
  4. Step 4: Simplify right side
    13,681.56x = 152,777,010.75
  5. Step 5: Solve for x
    x = 152,777,010.75/13,681.56
  6. Step 6: Final answer
    x = 11,166.64

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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.