Home / 14,125.42-21,179.92-5,355.55

Finding the Fourth Proportional to 14,125.42, 21,179.92 and 5,355.55

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Solution

The fourth proportional to 14,125.42, 21,179.92 and 5,355.55 is: 8,030.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,125.42 : 21,179.92 = 5,355.55 : x
  2. Step 2: Convert to fraction form
    14,125.42/21,179.92 = 5,355.55/x
  3. Step 3: Cross multiply
    14,125.42x = 21,179.92 × 5,355.55
  4. Step 4: Simplify right side
    14,125.42x = 113,430,074.30
  5. Step 5: Solve for x
    x = 113,430,074.30/14,125.42
  6. Step 6: Final answer
    x = 8,030.21

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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.