Home / 13,558.18-20,340.12-4,674.34

Finding the Fourth Proportional to 13,558.18, 20,340.12 and 4,674.34

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Solution

The fourth proportional to 13,558.18, 20,340.12 and 4,674.34 is: 7,012.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.18 : 20,340.12 = 4,674.34 : x
  2. Step 2: Convert to fraction form
    13,558.18/20,340.12 = 4,674.34/x
  3. Step 3: Cross multiply
    13,558.18x = 20,340.12 × 4,674.34
  4. Step 4: Simplify right side
    13,558.18x = 95,076,511.45
  5. Step 5: Solve for x
    x = 95,076,511.45/13,558.18
  6. Step 6: Final answer
    x = 7,012.49

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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.