Home / 12,218.00-18,327.34-4,319.39

Finding the Fourth Proportional to 12,218.00, 18,327.34 and 4,319.39

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Solution

The fourth proportional to 12,218.00, 18,327.34 and 4,319.39 is: 6,479.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218.00 : 18,327.34 = 4,319.39 : x
  2. Step 2: Convert to fraction form
    12,218.00/18,327.34 = 4,319.39/x
  3. Step 3: Cross multiply
    12,218.00x = 18,327.34 × 4,319.39
  4. Step 4: Simplify right side
    12,218.00x = 79,162,964.14
  5. Step 5: Solve for x
    x = 79,162,964.14/12,218.00
  6. Step 6: Final answer
    x = 6,479.21

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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.