Home / 7,611.12-11,416.74-2,679.63

Finding the Fourth Proportional to 7,611.12, 11,416.74 and 2,679.63

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Solution

The fourth proportional to 7,611.12, 11,416.74 and 2,679.63 is: 4,019.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,611.12 : 11,416.74 = 2,679.63 : x
  2. Step 2: Convert to fraction form
    7,611.12/11,416.74 = 2,679.63/x
  3. Step 3: Cross multiply
    7,611.12x = 11,416.74 × 2,679.63
  4. Step 4: Simplify right side
    7,611.12x = 30,592,639.01
  5. Step 5: Solve for x
    x = 30,592,639.01/7,611.12
  6. Step 6: Final answer
    x = 4,019.47

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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.