Home / 11,427.53-15,769.01-6,647.57

Finding the Fourth Proportional to 11,427.53, 15,769.01 and 6,647.57

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Solution

The fourth proportional to 11,427.53, 15,769.01 and 6,647.57 is: 9,173.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,427.53 : 15,769.01 = 6,647.57 : x
  2. Step 2: Convert to fraction form
    11,427.53/15,769.01 = 6,647.57/x
  3. Step 3: Cross multiply
    11,427.53x = 15,769.01 × 6,647.57
  4. Step 4: Simplify right side
    11,427.53x = 104,825,485.72
  5. Step 5: Solve for x
    x = 104,825,485.72/11,427.53
  6. Step 6: Final answer
    x = 9,173.07

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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.