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Finding the Fourth Proportional to 13,859.41, 19,125.97 and 7,486.00

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Solution

The fourth proportional to 13,859.41, 19,125.97 and 7,486.00 is: 10,330.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,859.41 : 19,125.97 = 7,486.00 : x
  2. Step 2: Convert to fraction form
    13,859.41/19,125.97 = 7,486.00/x
  3. Step 3: Cross multiply
    13,859.41x = 19,125.97 × 7,486.00
  4. Step 4: Simplify right side
    13,859.41x = 143,176,915.79
  5. Step 5: Solve for x
    x = 143,176,915.79/13,859.41
  6. Step 6: Final answer
    x = 10,330.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.