Home / 7,482.56-11,223.90-3,321.45

Finding the Fourth Proportional to 7,482.56, 11,223.90 and 3,321.45

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Solution

The fourth proportional to 7,482.56, 11,223.90 and 3,321.45 is: 4,982.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,482.56 : 11,223.90 = 3,321.45 : x
  2. Step 2: Convert to fraction form
    7,482.56/11,223.90 = 3,321.45/x
  3. Step 3: Cross multiply
    7,482.56x = 11,223.90 × 3,321.45
  4. Step 4: Simplify right side
    7,482.56x = 37,279,650.71
  5. Step 5: Solve for x
    x = 37,279,650.71/7,482.56
  6. Step 6: Final answer
    x = 4,982.20

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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.