Home / 14,129.60-21,198.09-7,550.42

Finding the Fourth Proportional to 14,129.60, 21,198.09 and 7,550.42

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Solution

The fourth proportional to 14,129.60, 21,198.09 and 7,550.42 is: 11,327.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,129.60 : 21,198.09 = 7,550.42 : x
  2. Step 2: Convert to fraction form
    14,129.60/21,198.09 = 7,550.42/x
  3. Step 3: Cross multiply
    14,129.60x = 21,198.09 × 7,550.42
  4. Step 4: Simplify right side
    14,129.60x = 160,054,482.70
  5. Step 5: Solve for x
    x = 160,054,482.70/14,129.60
  6. Step 6: Final answer
    x = 11,327.60

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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.