Home / 12,216.20-18,329.77-7,022.08

Finding the Fourth Proportional to 12,216.20, 18,329.77 and 7,022.08

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Solution

The fourth proportional to 12,216.20, 18,329.77 and 7,022.08 is: 10,536.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216.20 : 18,329.77 = 7,022.08 : x
  2. Step 2: Convert to fraction form
    12,216.20/18,329.77 = 7,022.08/x
  3. Step 3: Cross multiply
    12,216.20x = 18,329.77 × 7,022.08
  4. Step 4: Simplify right side
    12,216.20x = 128,713,074.27
  5. Step 5: Solve for x
    x = 128,713,074.27/12,216.20
  6. Step 6: Final answer
    x = 10,536.26

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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.