Home / 8,235.68-12,353.64-3,307.60

Finding the Fourth Proportional to 8,235.68, 12,353.64 and 3,307.60

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Solution

The fourth proportional to 8,235.68, 12,353.64 and 3,307.60 is: 4,961.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,235.68 : 12,353.64 = 3,307.60 : x
  2. Step 2: Convert to fraction form
    8,235.68/12,353.64 = 3,307.60/x
  3. Step 3: Cross multiply
    8,235.68x = 12,353.64 × 3,307.60
  4. Step 4: Simplify right side
    8,235.68x = 40,860,899.66
  5. Step 5: Solve for x
    x = 40,860,899.66/8,235.68
  6. Step 6: Final answer
    x = 4,961.45

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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.