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Finding the Fourth Proportional to 15,182.08, 20,952.64 and 8,811.04

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Solution

The fourth proportional to 15,182.08, 20,952.64 and 8,811.04 is: 12,160.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,182.08 : 20,952.64 = 8,811.04 : x
  2. Step 2: Convert to fraction form
    15,182.08/20,952.64 = 8,811.04/x
  3. Step 3: Cross multiply
    15,182.08x = 20,952.64 × 8,811.04
  4. Step 4: Simplify right side
    15,182.08x = 184,614,549.15
  5. Step 5: Solve for x
    x = 184,614,549.15/15,182.08
  6. Step 6: Final answer
    x = 12,160.03

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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.