Home / 11,171.50-16,761.84-4,928.20

Finding the Fourth Proportional to 11,171.50, 16,761.84 and 4,928.20

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Solution

The fourth proportional to 11,171.50, 16,761.84 and 4,928.20 is: 7,394.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,171.50 : 16,761.84 = 4,928.20 : x
  2. Step 2: Convert to fraction form
    11,171.50/16,761.84 = 4,928.20/x
  3. Step 3: Cross multiply
    11,171.50x = 16,761.84 × 4,928.20
  4. Step 4: Simplify right side
    11,171.50x = 82,605,699.89
  5. Step 5: Solve for x
    x = 82,605,699.89/11,171.50
  6. Step 6: Final answer
    x = 7,394.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.