Home / 22,218.96-30,662.98-12,148.08

Finding the Fourth Proportional to 22,218.96, 30,662.98 and 12,148.08

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Solution

The fourth proportional to 22,218.96, 30,662.98 and 12,148.08 is: 16,764.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,218.96 : 30,662.98 = 12,148.08 : x
  2. Step 2: Convert to fraction form
    22,218.96/30,662.98 = 12,148.08/x
  3. Step 3: Cross multiply
    22,218.96x = 30,662.98 × 12,148.08
  4. Step 4: Simplify right side
    22,218.96x = 372,496,334.08
  5. Step 5: Solve for x
    x = 372,496,334.08/22,218.96
  6. Step 6: Final answer
    x = 16,764.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.