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Finding the Fourth Proportional to 7,686.99, 11,528.21 and 3,303.42

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Solution

The fourth proportional to 7,686.99, 11,528.21 and 3,303.42 is: 4,954.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,686.99 : 11,528.21 = 3,303.42 : x
  2. Step 2: Convert to fraction form
    7,686.99/11,528.21 = 3,303.42/x
  3. Step 3: Cross multiply
    7,686.99x = 11,528.21 × 3,303.42
  4. Step 4: Simplify right side
    7,686.99x = 38,082,502.96
  5. Step 5: Solve for x
    x = 38,082,502.96/7,686.99
  6. Step 6: Final answer
    x = 4,954.15

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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.