Home / 14,652.70-20,220.84-11,289.38

Finding the Fourth Proportional to 14,652.70, 20,220.84 and 11,289.38

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Solution

The fourth proportional to 14,652.70, 20,220.84 and 11,289.38 is: 15,579.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,652.70 : 20,220.84 = 11,289.38 : x
  2. Step 2: Convert to fraction form
    14,652.70/20,220.84 = 11,289.38/x
  3. Step 3: Cross multiply
    14,652.70x = 20,220.84 × 11,289.38
  4. Step 4: Simplify right side
    14,652.70x = 228,280,645.58
  5. Step 5: Solve for x
    x = 228,280,645.58/14,652.70
  6. Step 6: Final answer
    x = 15,579.43

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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.