Home / 12,303.36-16,992.72-11,238.48

Finding the Fourth Proportional to 12,303.36, 16,992.72 and 11,238.48

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Solution

The fourth proportional to 12,303.36, 16,992.72 and 11,238.48 is: 15,521.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,303.36 : 16,992.72 = 11,238.48 : x
  2. Step 2: Convert to fraction form
    12,303.36/16,992.72 = 11,238.48/x
  3. Step 3: Cross multiply
    12,303.36x = 16,992.72 × 11,238.48
  4. Step 4: Simplify right side
    12,303.36x = 190,972,343.87
  5. Step 5: Solve for x
    x = 190,972,343.87/12,303.36
  6. Step 6: Final answer
    x = 15,521.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.