Home / 15,184.20-20,952.21-8,809.41

Finding the Fourth Proportional to 15,184.20, 20,952.21 and 8,809.41

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Solution

The fourth proportional to 15,184.20, 20,952.21 and 8,809.41 is: 12,155.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,184.20 : 20,952.21 = 8,809.41 : x
  2. Step 2: Convert to fraction form
    15,184.20/20,952.21 = 8,809.41/x
  3. Step 3: Cross multiply
    15,184.20x = 20,952.21 × 8,809.41
  4. Step 4: Simplify right side
    15,184.20x = 184,576,608.30
  5. Step 5: Solve for x
    x = 184,576,608.30/15,184.20
  6. Step 6: Final answer
    x = 12,155.83

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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.