Home / 9,738.40-14,611.20-3,899.20

Finding the Fourth Proportional to 9,738.40, 14,611.20 and 3,899.20

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Solution

The fourth proportional to 9,738.40, 14,611.20 and 3,899.20 is: 5,850.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,738.40 : 14,611.20 = 3,899.20 : x
  2. Step 2: Convert to fraction form
    9,738.40/14,611.20 = 3,899.20/x
  3. Step 3: Cross multiply
    9,738.40x = 14,611.20 × 3,899.20
  4. Step 4: Simplify right side
    9,738.40x = 56,971,991.04
  5. Step 5: Solve for x
    x = 56,971,991.04/9,738.40
  6. Step 6: Final answer
    x = 5,850.24

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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.