Home / 13,186.02-18,196.62-7,217.64

Finding the Fourth Proportional to 13,186.02, 18,196.62 and 7,217.64

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Solution

The fourth proportional to 13,186.02, 18,196.62 and 7,217.64 is: 9,960.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186.02 : 18,196.62 = 7,217.64 : x
  2. Step 2: Convert to fraction form
    13,186.02/18,196.62 = 7,217.64/x
  3. Step 3: Cross multiply
    13,186.02x = 18,196.62 × 7,217.64
  4. Step 4: Simplify right side
    13,186.02x = 131,336,652.38
  5. Step 5: Solve for x
    x = 131,336,652.38/13,186.02
  6. Step 6: Final answer
    x = 9,960.30

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Half scale
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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.