Home / 15,769.54-21,739.35-12,406.52

Finding the Fourth Proportional to 15,769.54, 21,739.35 and 12,406.52

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Solution

The fourth proportional to 15,769.54, 21,739.35 and 12,406.52 is: 17,103.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,769.54 : 21,739.35 = 12,406.52 : x
  2. Step 2: Convert to fraction form
    15,769.54/21,739.35 = 12,406.52/x
  3. Step 3: Cross multiply
    15,769.54x = 21,739.35 × 12,406.52
  4. Step 4: Simplify right side
    15,769.54x = 269,709,680.56
  5. Step 5: Solve for x
    x = 269,709,680.56/15,769.54
  6. Step 6: Final answer
    x = 17,103.21

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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.