Home / 16,518.12-22,779.78-11,220.84

Finding the Fourth Proportional to 16,518.12, 22,779.78 and 11,220.84

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Solution

The fourth proportional to 16,518.12, 22,779.78 and 11,220.84 is: 15,474.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,518.12 : 22,779.78 = 11,220.84 : x
  2. Step 2: Convert to fraction form
    16,518.12/22,779.78 = 11,220.84/x
  3. Step 3: Cross multiply
    16,518.12x = 22,779.78 × 11,220.84
  4. Step 4: Simplify right side
    16,518.12x = 255,608,266.62
  5. Step 5: Solve for x
    x = 255,608,266.62/16,518.12
  6. Step 6: Final answer
    x = 15,474.42

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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.