Home / 14,391.60-21,533.94-12,628.35

Finding the Fourth Proportional to 14,391.60, 21,533.94 and 12,628.35

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Solution

The fourth proportional to 14,391.60, 21,533.94 and 12,628.35 is: 18,895.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,391.60 : 21,533.94 = 12,628.35 : x
  2. Step 2: Convert to fraction form
    14,391.60/21,533.94 = 12,628.35/x
  3. Step 3: Cross multiply
    14,391.60x = 21,533.94 × 12,628.35
  4. Step 4: Simplify right side
    14,391.60x = 271,938,131.20
  5. Step 5: Solve for x
    x = 271,938,131.20/14,391.60
  6. Step 6: Final answer
    x = 18,895.61

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1.5x scale

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.