Home / 9,255.72-12,777.11-5,903.13

Finding the Fourth Proportional to 9,255.72, 12,777.11 and 5,903.13

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Solution

The fourth proportional to 9,255.72, 12,777.11 and 5,903.13 is: 8,149.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,255.72 : 12,777.11 = 5,903.13 : x
  2. Step 2: Convert to fraction form
    9,255.72/12,777.11 = 5,903.13/x
  3. Step 3: Cross multiply
    9,255.72x = 12,777.11 × 5,903.13
  4. Step 4: Simplify right side
    9,255.72x = 75,424,941.35
  5. Step 5: Solve for x
    x = 75,424,941.35/9,255.72
  6. Step 6: Final answer
    x = 8,149.01

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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.