Home / 7,836.84-11,749.44-4,328.40

Finding the Fourth Proportional to 7,836.84, 11,749.44 and 4,328.40

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Solution

The fourth proportional to 7,836.84, 11,749.44 and 4,328.40 is: 6,489.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,836.84 : 11,749.44 = 4,328.40 : x
  2. Step 2: Convert to fraction form
    7,836.84/11,749.44 = 4,328.40/x
  3. Step 3: Cross multiply
    7,836.84x = 11,749.44 × 4,328.40
  4. Step 4: Simplify right side
    7,836.84x = 50,856,276.10
  5. Step 5: Solve for x
    x = 50,856,276.10/7,836.84
  6. Step 6: Final answer
    x = 6,489.39

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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.