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Finding the Fourth Proportional to 7,583.28, 11,360.28 and 4,286.28

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Solution

The fourth proportional to 7,583.28, 11,360.28 and 4,286.28 is: 6,421.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,583.28 : 11,360.28 = 4,286.28 : x
  2. Step 2: Convert to fraction form
    7,583.28/11,360.28 = 4,286.28/x
  3. Step 3: Cross multiply
    7,583.28x = 11,360.28 × 4,286.28
  4. Step 4: Simplify right side
    7,583.28x = 48,693,340.96
  5. Step 5: Solve for x
    x = 48,693,340.96/7,583.28
  6. Step 6: Final answer
    x = 6,421.15

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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.