Home / 12,975.03-19,324.80-12,165.84

Finding the Fourth Proportional to 12,975.03, 19,324.80 and 12,165.84

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Solution

The fourth proportional to 12,975.03, 19,324.80 and 12,165.84 is: 18,119.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,975.03 : 19,324.80 = 12,165.84 : x
  2. Step 2: Convert to fraction form
    12,975.03/19,324.80 = 12,165.84/x
  3. Step 3: Cross multiply
    12,975.03x = 19,324.80 × 12,165.84
  4. Step 4: Simplify right side
    12,975.03x = 235,102,424.83
  5. Step 5: Solve for x
    x = 235,102,424.83/12,975.03
  6. Step 6: Final answer
    x = 18,119.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.