Home / 14,379.60-21,529.36-7,344.40

Finding the Fourth Proportional to 14,379.60, 21,529.36 and 7,344.40

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Solution

The fourth proportional to 14,379.60, 21,529.36 and 7,344.40 is: 10,996.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,379.60 : 21,529.36 = 7,344.40 : x
  2. Step 2: Convert to fraction form
    14,379.60/21,529.36 = 7,344.40/x
  3. Step 3: Cross multiply
    14,379.60x = 21,529.36 × 7,344.40
  4. Step 4: Simplify right side
    14,379.60x = 158,120,231.58
  5. Step 5: Solve for x
    x = 158,120,231.58/14,379.60
  6. Step 6: Final answer
    x = 10,996.15

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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.