Home / 15,910.75-23,860.13-12,783.07

Finding the Fourth Proportional to 15,910.75, 23,860.13 and 12,783.07

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Solution

The fourth proportional to 15,910.75, 23,860.13 and 12,783.07 is: 19,169.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,910.75 : 23,860.13 = 12,783.07 : x
  2. Step 2: Convert to fraction form
    15,910.75/23,860.13 = 12,783.07/x
  3. Step 3: Cross multiply
    15,910.75x = 23,860.13 × 12,783.07
  4. Step 4: Simplify right side
    15,910.75x = 305,005,648.08
  5. Step 5: Solve for x
    x = 305,005,648.08/15,910.75
  6. Step 6: Final answer
    x = 19,169.78

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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.