Home / 12,110.64-18,165.94-3,345.54

Finding the Fourth Proportional to 12,110.64, 18,165.94 and 3,345.54

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Solution

The fourth proportional to 12,110.64, 18,165.94 and 3,345.54 is: 5,018.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,110.64 : 18,165.94 = 3,345.54 : x
  2. Step 2: Convert to fraction form
    12,110.64/18,165.94 = 3,345.54/x
  3. Step 3: Cross multiply
    12,110.64x = 18,165.94 × 3,345.54
  4. Step 4: Simplify right side
    12,110.64x = 60,774,878.91
  5. Step 5: Solve for x
    x = 60,774,878.91/12,110.64
  6. Step 6: Final answer
    x = 5,018.30

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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.