Home / 11,928.67-16,459.81-6,623.53

Finding the Fourth Proportional to 11,928.67, 16,459.81 and 6,623.53

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Solution

The fourth proportional to 11,928.67, 16,459.81 and 6,623.53 is: 9,139.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.67 : 16,459.81 = 6,623.53 : x
  2. Step 2: Convert to fraction form
    11,928.67/16,459.81 = 6,623.53/x
  3. Step 3: Cross multiply
    11,928.67x = 16,459.81 × 6,623.53
  4. Step 4: Simplify right side
    11,928.67x = 109,022,045.33
  5. Step 5: Solve for x
    x = 109,022,045.33/11,928.67
  6. Step 6: Final answer
    x = 9,139.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.