Home / 8,118.26-12,181.02-4,655.50

Finding the Fourth Proportional to 8,118.26, 12,181.02 and 4,655.50

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Solution

The fourth proportional to 8,118.26, 12,181.02 and 4,655.50 is: 6,985.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,118.26 : 12,181.02 = 4,655.50 : x
  2. Step 2: Convert to fraction form
    8,118.26/12,181.02 = 4,655.50/x
  3. Step 3: Cross multiply
    8,118.26x = 12,181.02 × 4,655.50
  4. Step 4: Simplify right side
    8,118.26x = 56,708,738.61
  5. Step 5: Solve for x
    x = 56,708,738.61/8,118.26
  6. Step 6: Final answer
    x = 6,985.33

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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.