Home / 14,149.44-21,205.56-7,909.20

Finding the Fourth Proportional to 14,149.44, 21,205.56 and 7,909.20

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Solution

The fourth proportional to 14,149.44, 21,205.56 and 7,909.20 is: 11,853.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,149.44 : 21,205.56 = 7,909.20 : x
  2. Step 2: Convert to fraction form
    14,149.44/21,205.56 = 7,909.20/x
  3. Step 3: Cross multiply
    14,149.44x = 21,205.56 × 7,909.20
  4. Step 4: Simplify right side
    14,149.44x = 167,719,015.15
  5. Step 5: Solve for x
    x = 167,719,015.15/14,149.44
  6. Step 6: Final answer
    x = 11,853.40

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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.