Home / 18,707.49-28,061.37-12,846.33

Finding the Fourth Proportional to 18,707.49, 28,061.37 and 12,846.33

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Solution

The fourth proportional to 18,707.49, 28,061.37 and 12,846.33 is: 19,269.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,707.49 : 28,061.37 = 12,846.33 : x
  2. Step 2: Convert to fraction form
    18,707.49/28,061.37 = 12,846.33/x
  3. Step 3: Cross multiply
    18,707.49x = 28,061.37 × 12,846.33
  4. Step 4: Simplify right side
    18,707.49x = 360,485,619.27
  5. Step 5: Solve for x
    x = 360,485,619.27/18,707.49
  6. Step 6: Final answer
    x = 19,269.59

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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.