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Finding the Fourth Proportional to 13,253.59, 19,880.29 and 4,019.59

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Solution

The fourth proportional to 13,253.59, 19,880.29 and 4,019.59 is: 6,029.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,253.59 : 19,880.29 = 4,019.59 : x
  2. Step 2: Convert to fraction form
    13,253.59/19,880.29 = 4,019.59/x
  3. Step 3: Cross multiply
    13,253.59x = 19,880.29 × 4,019.59
  4. Step 4: Simplify right side
    13,253.59x = 79,910,614.88
  5. Step 5: Solve for x
    x = 79,910,614.88/13,253.59
  6. Step 6: Final answer
    x = 6,029.36

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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.