Home / 13,899.71-20,849.57-3,511.46

Finding the Fourth Proportional to 13,899.71, 20,849.57 and 3,511.46

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Solution

The fourth proportional to 13,899.71, 20,849.57 and 3,511.46 is: 5,267.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,899.71 : 20,849.57 = 3,511.46 : x
  2. Step 2: Convert to fraction form
    13,899.71/20,849.57 = 3,511.46/x
  3. Step 3: Cross multiply
    13,899.71x = 20,849.57 × 3,511.46
  4. Step 4: Simplify right side
    13,899.71x = 73,212,413.51
  5. Step 5: Solve for x
    x = 73,212,413.51/13,899.71
  6. Step 6: Final answer
    x = 5,267.19

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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.