Home / 12,181.08-18,265.86-5,605.32

Finding the Fourth Proportional to 12,181.08, 18,265.86 and 5,605.32

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Solution

The fourth proportional to 12,181.08, 18,265.86 and 5,605.32 is: 8,405.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,181.08 : 18,265.86 = 5,605.32 : x
  2. Step 2: Convert to fraction form
    12,181.08/18,265.86 = 5,605.32/x
  3. Step 3: Cross multiply
    12,181.08x = 18,265.86 × 5,605.32
  4. Step 4: Simplify right side
    12,181.08x = 102,385,990.38
  5. Step 5: Solve for x
    x = 102,385,990.38/12,181.08
  6. Step 6: Final answer
    x = 8,405.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.