Home / 14,639.85-20,203.26-8,669.34

Finding the Fourth Proportional to 14,639.85, 20,203.26 and 8,669.34

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Solution

The fourth proportional to 14,639.85, 20,203.26 and 8,669.34 is: 11,963.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,639.85 : 20,203.26 = 8,669.34 : x
  2. Step 2: Convert to fraction form
    14,639.85/20,203.26 = 8,669.34/x
  3. Step 3: Cross multiply
    14,639.85x = 20,203.26 × 8,669.34
  4. Step 4: Simplify right side
    14,639.85x = 175,148,930.05
  5. Step 5: Solve for x
    x = 175,148,930.05/14,639.85
  6. Step 6: Final answer
    x = 11,963.85

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1.5x scale

Why These Related Problems?

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