Home / 13,527.53-18,650.90-8,739.38

Finding the Fourth Proportional to 13,527.53, 18,650.90 and 8,739.38

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Solution

The fourth proportional to 13,527.53, 18,650.90 and 8,739.38 is: 12,049.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,527.53 : 18,650.90 = 8,739.38 : x
  2. Step 2: Convert to fraction form
    13,527.53/18,650.90 = 8,739.38/x
  3. Step 3: Cross multiply
    13,527.53x = 18,650.90 × 8,739.38
  4. Step 4: Simplify right side
    13,527.53x = 162,997,165.49
  5. Step 5: Solve for x
    x = 162,997,165.49/13,527.53
  6. Step 6: Final answer
    x = 12,049.30

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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.