Home / 13,008.11-19,511.40-3,520.28

Finding the Fourth Proportional to 13,008.11, 19,511.40 and 3,520.28

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Solution

The fourth proportional to 13,008.11, 19,511.40 and 3,520.28 is: 5,280.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,008.11 : 19,511.40 = 3,520.28 : x
  2. Step 2: Convert to fraction form
    13,008.11/19,511.40 = 3,520.28/x
  3. Step 3: Cross multiply
    13,008.11x = 19,511.40 × 3,520.28
  4. Step 4: Simplify right side
    13,008.11x = 68,685,493.64
  5. Step 5: Solve for x
    x = 68,685,493.64/13,008.11
  6. Step 6: Final answer
    x = 5,280.21

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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.