Home / 15,169.72-20,933.85-8,797.45

Finding the Fourth Proportional to 15,169.72, 20,933.85 and 8,797.45

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Solution

The fourth proportional to 15,169.72, 20,933.85 and 8,797.45 is: 12,140.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,169.72 : 20,933.85 = 8,797.45 : x
  2. Step 2: Convert to fraction form
    15,169.72/20,933.85 = 8,797.45/x
  3. Step 3: Cross multiply
    15,169.72x = 20,933.85 × 8,797.45
  4. Step 4: Simplify right side
    15,169.72x = 184,164,394.01
  5. Step 5: Solve for x
    x = 184,164,394.01/15,169.72
  6. Step 6: Final answer
    x = 12,140.27

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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.