Home / 9,192.22-12,686.20-5,416.56

Finding the Fourth Proportional to 9,192.22, 12,686.20 and 5,416.56

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Solution

The fourth proportional to 9,192.22, 12,686.20 and 5,416.56 is: 7,475.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,192.22 : 12,686.20 = 5,416.56 : x
  2. Step 2: Convert to fraction form
    9,192.22/12,686.20 = 5,416.56/x
  3. Step 3: Cross multiply
    9,192.22x = 12,686.20 × 5,416.56
  4. Step 4: Simplify right side
    9,192.22x = 68,715,549.93
  5. Step 5: Solve for x
    x = 68,715,549.93/9,192.22
  6. Step 6: Final answer
    x = 7,475.41

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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.