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Finding the Fourth Proportional to 13,969.72, 19,277.35 and 8,000.02

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Solution

The fourth proportional to 13,969.72, 19,277.35 and 8,000.02 is: 11,039.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,969.72 : 19,277.35 = 8,000.02 : x
  2. Step 2: Convert to fraction form
    13,969.72/19,277.35 = 8,000.02/x
  3. Step 3: Cross multiply
    13,969.72x = 19,277.35 × 8,000.02
  4. Step 4: Simplify right side
    13,969.72x = 154,219,185.55
  5. Step 5: Solve for x
    x = 154,219,185.55/13,969.72
  6. Step 6: Final answer
    x = 11,039.53

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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.