Home / 11,647.40-16,084.08-7,399.82

Finding the Fourth Proportional to 11,647.40, 16,084.08 and 7,399.82

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Solution

The fourth proportional to 11,647.40, 16,084.08 and 7,399.82 is: 10,218.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,647.40 : 16,084.08 = 7,399.82 : x
  2. Step 2: Convert to fraction form
    11,647.40/16,084.08 = 7,399.82/x
  3. Step 3: Cross multiply
    11,647.40x = 16,084.08 × 7,399.82
  4. Step 4: Simplify right side
    11,647.40x = 119,019,296.87
  5. Step 5: Solve for x
    x = 119,019,296.87/11,647.40
  6. Step 6: Final answer
    x = 10,218.53

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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.