Home / 12,357.84-18,518.44-6,496.68

Finding the Fourth Proportional to 12,357.84, 18,518.44 and 6,496.68

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Solution

The fourth proportional to 12,357.84, 18,518.44 and 6,496.68 is: 9,735.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357.84 : 18,518.44 = 6,496.68 : x
  2. Step 2: Convert to fraction form
    12,357.84/18,518.44 = 6,496.68/x
  3. Step 3: Cross multiply
    12,357.84x = 18,518.44 × 6,496.68
  4. Step 4: Simplify right side
    12,357.84x = 120,308,378.78
  5. Step 5: Solve for x
    x = 120,308,378.78/12,357.84
  6. Step 6: Final answer
    x = 9,735.39

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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.