Home / 14,268.60-21,420.45-9,003.60

Finding the Fourth Proportional to 14,268.60, 21,420.45 and 9,003.60

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Solution

The fourth proportional to 14,268.60, 21,420.45 and 9,003.60 is: 13,516.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,268.60 : 21,420.45 = 9,003.60 : x
  2. Step 2: Convert to fraction form
    14,268.60/21,420.45 = 9,003.60/x
  3. Step 3: Cross multiply
    14,268.60x = 21,420.45 × 9,003.60
  4. Step 4: Simplify right side
    14,268.60x = 192,861,163.62
  5. Step 5: Solve for x
    x = 192,861,163.62/14,268.60
  6. Step 6: Final answer
    x = 13,516.47

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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.