Home / 14,985.30-20,679.60-8,271.21

Finding the Fourth Proportional to 14,985.30, 20,679.60 and 8,271.21

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Solution

The fourth proportional to 14,985.30, 20,679.60 and 8,271.21 is: 11,414.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,985.30 : 20,679.60 = 8,271.21 : x
  2. Step 2: Convert to fraction form
    14,985.30/20,679.60 = 8,271.21/x
  3. Step 3: Cross multiply
    14,985.30x = 20,679.60 × 8,271.21
  4. Step 4: Simplify right side
    14,985.30x = 171,045,422.88
  5. Step 5: Solve for x
    x = 171,045,422.88/14,985.30
  6. Step 6: Final answer
    x = 11,414.21

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.