Home / 12,245.78-18,362.54-5,666.32

Finding the Fourth Proportional to 12,245.78, 18,362.54 and 5,666.32

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Solution

The fourth proportional to 12,245.78, 18,362.54 and 5,666.32 is: 8,496.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,245.78 : 18,362.54 = 5,666.32 : x
  2. Step 2: Convert to fraction form
    12,245.78/18,362.54 = 5,666.32/x
  3. Step 3: Cross multiply
    12,245.78x = 18,362.54 × 5,666.32
  4. Step 4: Simplify right side
    12,245.78x = 104,048,027.65
  5. Step 5: Solve for x
    x = 104,048,027.65/12,245.78
  6. Step 6: Final answer
    x = 8,496.64

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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.