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Finding the Fourth Proportional to 13,000.15, 19,504.01 and 4,679.99

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Solution

The fourth proportional to 13,000.15, 19,504.01 and 4,679.99 is: 7,021.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,000.15 : 19,504.01 = 4,679.99 : x
  2. Step 2: Convert to fraction form
    13,000.15/19,504.01 = 4,679.99/x
  3. Step 3: Cross multiply
    13,000.15x = 19,504.01 × 4,679.99
  4. Step 4: Simplify right side
    13,000.15x = 91,278,571.76
  5. Step 5: Solve for x
    x = 91,278,571.76/13,000.15
  6. Step 6: Final answer
    x = 7,021.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.