Home / 9,135.62-13,695.22-3,288.12

Finding the Fourth Proportional to 9,135.62, 13,695.22 and 3,288.12

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Solution

The fourth proportional to 9,135.62, 13,695.22 and 3,288.12 is: 4,929.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,135.62 : 13,695.22 = 3,288.12 : x
  2. Step 2: Convert to fraction form
    9,135.62/13,695.22 = 3,288.12/x
  3. Step 3: Cross multiply
    9,135.62x = 13,695.22 × 3,288.12
  4. Step 4: Simplify right side
    9,135.62x = 45,031,526.79
  5. Step 5: Solve for x
    x = 45,031,526.79/9,135.62
  6. Step 6: Final answer
    x = 4,929.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.