Home / 11,812.75-16,300.83-6,507.53

Finding the Fourth Proportional to 11,812.75, 16,300.83 and 6,507.53

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Solution

The fourth proportional to 11,812.75, 16,300.83 and 6,507.53 is: 8,979.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,812.75 : 16,300.83 = 6,507.53 : x
  2. Step 2: Convert to fraction form
    11,812.75/16,300.83 = 6,507.53/x
  3. Step 3: Cross multiply
    11,812.75x = 16,300.83 × 6,507.53
  4. Step 4: Simplify right side
    11,812.75x = 106,078,140.25
  5. Step 5: Solve for x
    x = 106,078,140.25/11,812.75
  6. Step 6: Final answer
    x = 8,979.97

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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.