Home / 16,186.08-22,316.40-13,198.80

Finding the Fourth Proportional to 16,186.08, 22,316.40 and 13,198.80

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Solution

The fourth proportional to 16,186.08, 22,316.40 and 13,198.80 is: 18,197.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,186.08 : 22,316.40 = 13,198.80 : x
  2. Step 2: Convert to fraction form
    16,186.08/22,316.40 = 13,198.80/x
  3. Step 3: Cross multiply
    16,186.08x = 22,316.40 × 13,198.80
  4. Step 4: Simplify right side
    16,186.08x = 294,549,700.32
  5. Step 5: Solve for x
    x = 294,549,700.32/16,186.08
  6. Step 6: Final answer
    x = 18,197.72

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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.