Home / 12,218.16-18,327.24-4,424.40

Finding the Fourth Proportional to 12,218.16, 18,327.24 and 4,424.40

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Solution

The fourth proportional to 12,218.16, 18,327.24 and 4,424.40 is: 6,636.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,218.16 : 18,327.24 = 4,424.40 : x
  2. Step 2: Convert to fraction form
    12,218.16/18,327.24 = 4,424.40/x
  3. Step 3: Cross multiply
    12,218.16x = 18,327.24 × 4,424.40
  4. Step 4: Simplify right side
    12,218.16x = 81,087,040.66
  5. Step 5: Solve for x
    x = 81,087,040.66/12,218.16
  6. Step 6: Final answer
    x = 6,636.60

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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.