Home / 7,482.21-11,213.52-5,409.15

Finding the Fourth Proportional to 7,482.21, 11,213.52 and 5,409.15

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Solution

The fourth proportional to 7,482.21, 11,213.52 and 5,409.15 is: 8,106.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,482.21 : 11,213.52 = 5,409.15 : x
  2. Step 2: Convert to fraction form
    7,482.21/11,213.52 = 5,409.15/x
  3. Step 3: Cross multiply
    7,482.21x = 11,213.52 × 5,409.15
  4. Step 4: Simplify right side
    7,482.21x = 60,655,611.71
  5. Step 5: Solve for x
    x = 60,655,611.71/7,482.21
  6. Step 6: Final answer
    x = 8,106.64

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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.