Home / 11,190.58-15,443.44-6,411.28

Finding the Fourth Proportional to 11,190.58, 15,443.44 and 6,411.28

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Solution

The fourth proportional to 11,190.58, 15,443.44 and 6,411.28 is: 8,847.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,190.58 : 15,443.44 = 6,411.28 : x
  2. Step 2: Convert to fraction form
    11,190.58/15,443.44 = 6,411.28/x
  3. Step 3: Cross multiply
    11,190.58x = 15,443.44 × 6,411.28
  4. Step 4: Simplify right side
    11,190.58x = 99,012,218.00
  5. Step 5: Solve for x
    x = 99,012,218.00/11,190.58
  6. Step 6: Final answer
    x = 8,847.82

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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.