Home / 12,192.54-18,288.65-2,958.62

Finding the Fourth Proportional to 12,192.54, 18,288.65 and 2,958.62

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Solution

The fourth proportional to 12,192.54, 18,288.65 and 2,958.62 is: 4,437.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,192.54 : 18,288.65 = 2,958.62 : x
  2. Step 2: Convert to fraction form
    12,192.54/18,288.65 = 2,958.62/x
  3. Step 3: Cross multiply
    12,192.54x = 18,288.65 × 2,958.62
  4. Step 4: Simplify right side
    12,192.54x = 54,109,165.66
  5. Step 5: Solve for x
    x = 54,109,165.66/12,192.54
  6. Step 6: Final answer
    x = 4,437.89

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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.