Home / 16,218.42-22,390.26-11,209.60

Finding the Fourth Proportional to 16,218.42, 22,390.26 and 11,209.60

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Solution

The fourth proportional to 16,218.42, 22,390.26 and 11,209.60 is: 15,475.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,218.42 : 22,390.26 = 11,209.60 : x
  2. Step 2: Convert to fraction form
    16,218.42/22,390.26 = 11,209.60/x
  3. Step 3: Cross multiply
    16,218.42x = 22,390.26 × 11,209.60
  4. Step 4: Simplify right side
    16,218.42x = 250,985,858.50
  5. Step 5: Solve for x
    x = 250,985,858.50/16,218.42
  6. Step 6: Final answer
    x = 15,475.36

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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.