Home / 13,328.80-19,983.12-8,062.64

Finding the Fourth Proportional to 13,328.80, 19,983.12 and 8,062.64

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Solution

The fourth proportional to 13,328.80, 19,983.12 and 8,062.64 is: 12,087.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,328.80 : 19,983.12 = 8,062.64 : x
  2. Step 2: Convert to fraction form
    13,328.80/19,983.12 = 8,062.64/x
  3. Step 3: Cross multiply
    13,328.80x = 19,983.12 × 8,062.64
  4. Step 4: Simplify right side
    13,328.80x = 161,116,702.64
  5. Step 5: Solve for x
    x = 161,116,702.64/13,328.80
  6. Step 6: Final answer
    x = 12,087.86

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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.