Home / 13,824.56-19,071.88-8,786.08

Finding the Fourth Proportional to 13,824.56, 19,071.88 and 8,786.08

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Solution

The fourth proportional to 13,824.56, 19,071.88 and 8,786.08 is: 12,120.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824.56 : 19,071.88 = 8,786.08 : x
  2. Step 2: Convert to fraction form
    13,824.56/19,071.88 = 8,786.08/x
  3. Step 3: Cross multiply
    13,824.56x = 19,071.88 × 8,786.08
  4. Step 4: Simplify right side
    13,824.56x = 167,567,065.31
  5. Step 5: Solve for x
    x = 167,567,065.31/13,824.56
  6. Step 6: Final answer
    x = 12,120.97

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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.