Home / 12,007.48-18,009.79-3,243.07

Finding the Fourth Proportional to 12,007.48, 18,009.79 and 3,243.07

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Solution

The fourth proportional to 12,007.48, 18,009.79 and 3,243.07 is: 4,864.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,007.48 : 18,009.79 = 3,243.07 : x
  2. Step 2: Convert to fraction form
    12,007.48/18,009.79 = 3,243.07/x
  3. Step 3: Cross multiply
    12,007.48x = 18,009.79 × 3,243.07
  4. Step 4: Simplify right side
    12,007.48x = 58,407,009.66
  5. Step 5: Solve for x
    x = 58,407,009.66/12,007.48
  6. Step 6: Final answer
    x = 4,864.22

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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.