Home / 13,957.10-20,907.30-8,675.90

Finding the Fourth Proportional to 13,957.10, 20,907.30 and 8,675.90

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Solution

The fourth proportional to 13,957.10, 20,907.30 and 8,675.90 is: 12,996.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,957.10 : 20,907.30 = 8,675.90 : x
  2. Step 2: Convert to fraction form
    13,957.10/20,907.30 = 8,675.90/x
  3. Step 3: Cross multiply
    13,957.10x = 20,907.30 × 8,675.90
  4. Step 4: Simplify right side
    13,957.10x = 181,389,644.07
  5. Step 5: Solve for x
    x = 181,389,644.07/13,957.10
  6. Step 6: Final answer
    x = 12,996.23

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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.