Home / 15,786.30-23,621.04-12,986.94

Finding the Fourth Proportional to 15,786.30, 23,621.04 and 12,986.94

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Solution

The fourth proportional to 15,786.30, 23,621.04 and 12,986.94 is: 19,432.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,786.30 : 23,621.04 = 12,986.94 : x
  2. Step 2: Convert to fraction form
    15,786.30/23,621.04 = 12,986.94/x
  3. Step 3: Cross multiply
    15,786.30x = 23,621.04 × 12,986.94
  4. Step 4: Simplify right side
    15,786.30x = 306,765,029.22
  5. Step 5: Solve for x
    x = 306,765,029.22/15,786.30
  6. Step 6: Final answer
    x = 19,432.36

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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.