Home / 18,669.24-28,012.80-11,647.44

Finding the Fourth Proportional to 18,669.24, 28,012.80 and 11,647.44

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Solution

The fourth proportional to 18,669.24, 28,012.80 and 11,647.44 is: 17,476.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,669.24 : 28,012.80 = 11,647.44 : x
  2. Step 2: Convert to fraction form
    18,669.24/28,012.80 = 11,647.44/x
  3. Step 3: Cross multiply
    18,669.24x = 28,012.80 × 11,647.44
  4. Step 4: Simplify right side
    18,669.24x = 326,277,407.23
  5. Step 5: Solve for x
    x = 326,277,407.23/18,669.24
  6. Step 6: Final answer
    x = 17,476.74

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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.