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Finding the Fourth Proportional to 14,208.08, 19,610.60 and 8,618

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Solution

The fourth proportional to 14,208.08, 19,610.60 and 8,618 is: 11,894.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,208.08 : 19,610.60 = 8,618 : x
  2. Step 2: Convert to fraction form
    14,208.08/19,610.60 = 8,618/x
  3. Step 3: Cross multiply
    14,208.08x = 19,610.60 × 8,618
  4. Step 4: Simplify right side
    14,208.08x = 169,004,150.80
  5. Step 5: Solve for x
    x = 169,004,150.80/14,208.08
  6. Step 6: Final answer
    x = 11,894.93

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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.