Home / 8,219.23-12,329.51-3,539.36

Finding the Fourth Proportional to 8,219.23, 12,329.51 and 3,539.36

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Solution

The fourth proportional to 8,219.23, 12,329.51 and 3,539.36 is: 5,309.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,219.23 : 12,329.51 = 3,539.36 : x
  2. Step 2: Convert to fraction form
    8,219.23/12,329.51 = 3,539.36/x
  3. Step 3: Cross multiply
    8,219.23x = 12,329.51 × 3,539.36
  4. Step 4: Simplify right side
    8,219.23x = 43,638,574.51
  5. Step 5: Solve for x
    x = 43,638,574.51/8,219.23
  6. Step 6: Final answer
    x = 5,309.33

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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.