Home / 12,216.83-18,325.58-4,318.22

Finding the Fourth Proportional to 12,216.83, 18,325.58 and 4,318.22

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Solution

The fourth proportional to 12,216.83, 18,325.58 and 4,318.22 is: 6,477.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216.83 : 18,325.58 = 4,318.22 : x
  2. Step 2: Convert to fraction form
    12,216.83/18,325.58 = 4,318.22/x
  3. Step 3: Cross multiply
    12,216.83x = 18,325.58 × 4,318.22
  4. Step 4: Simplify right side
    12,216.83x = 79,133,954.28
  5. Step 5: Solve for x
    x = 79,133,954.28/12,216.83
  6. Step 6: Final answer
    x = 6,477.46

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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.