Home / 13,680.56-18,883.86-8,017.13

Finding the Fourth Proportional to 13,680.56, 18,883.86 and 8,017.13

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Solution

The fourth proportional to 13,680.56, 18,883.86 and 8,017.13 is: 11,066.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,680.56 : 18,883.86 = 8,017.13 : x
  2. Step 2: Convert to fraction form
    13,680.56/18,883.86 = 8,017.13/x
  3. Step 3: Cross multiply
    13,680.56x = 18,883.86 × 8,017.13
  4. Step 4: Simplify right side
    13,680.56x = 151,394,360.52
  5. Step 5: Solve for x
    x = 151,394,360.52/13,680.56
  6. Step 6: Final answer
    x = 11,066.39

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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.