Home / 14,268.20-21,403.90-4,407.40

Finding the Fourth Proportional to 14,268.20, 21,403.90 and 4,407.40

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Solution

The fourth proportional to 14,268.20, 21,403.90 and 4,407.40 is: 6,611.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,268.20 : 21,403.90 = 4,407.40 : x
  2. Step 2: Convert to fraction form
    14,268.20/21,403.90 = 4,407.40/x
  3. Step 3: Cross multiply
    14,268.20x = 21,403.90 × 4,407.40
  4. Step 4: Simplify right side
    14,268.20x = 94,335,548.86
  5. Step 5: Solve for x
    x = 94,335,548.86/14,268.20
  6. Step 6: Final answer
    x = 6,611.59

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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.