Home / 7,443.90-11,172.74-3,748.68

Finding the Fourth Proportional to 7,443.90, 11,172.74 and 3,748.68

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Solution

The fourth proportional to 7,443.90, 11,172.74 and 3,748.68 is: 5,626.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,443.90 : 11,172.74 = 3,748.68 : x
  2. Step 2: Convert to fraction form
    7,443.90/11,172.74 = 3,748.68/x
  3. Step 3: Cross multiply
    7,443.90x = 11,172.74 × 3,748.68
  4. Step 4: Simplify right side
    7,443.90x = 41,883,008.24
  5. Step 5: Solve for x
    x = 41,883,008.24/7,443.90
  6. Step 6: Final answer
    x = 5,626.49

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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.