Home / 7,475.54-11,220.21-3,780.32

Finding the Fourth Proportional to 7,475.54, 11,220.21 and 3,780.32

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Solution

The fourth proportional to 7,475.54, 11,220.21 and 3,780.32 is: 5,673.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,475.54 : 11,220.21 = 3,780.32 : x
  2. Step 2: Convert to fraction form
    7,475.54/11,220.21 = 3,780.32/x
  3. Step 3: Cross multiply
    7,475.54x = 11,220.21 × 3,780.32
  4. Step 4: Simplify right side
    7,475.54x = 42,415,984.27
  5. Step 5: Solve for x
    x = 42,415,984.27/7,475.54
  6. Step 6: Final answer
    x = 5,673.97

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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.