Home / 11,218.21-15,480.94-6,437.96

Finding the Fourth Proportional to 11,218.21, 15,480.94 and 6,437.96

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Solution

The fourth proportional to 11,218.21, 15,480.94 and 6,437.96 is: 8,884.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,218.21 : 15,480.94 = 6,437.96 : x
  2. Step 2: Convert to fraction form
    11,218.21/15,480.94 = 6,437.96/x
  3. Step 3: Cross multiply
    11,218.21x = 15,480.94 × 6,437.96
  4. Step 4: Simplify right side
    11,218.21x = 99,665,603.13
  5. Step 5: Solve for x
    x = 99,665,603.13/11,218.21
  6. Step 6: Final answer
    x = 8,884.27

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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.