Home / 14,975.12-20,665.38-8,261.39

Finding the Fourth Proportional to 14,975.12, 20,665.38 and 8,261.39

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Solution

The fourth proportional to 14,975.12, 20,665.38 and 8,261.39 is: 11,400.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,975.12 : 20,665.38 = 8,261.39 : x
  2. Step 2: Convert to fraction form
    14,975.12/20,665.38 = 8,261.39/x
  3. Step 3: Cross multiply
    14,975.12x = 20,665.38 × 8,261.39
  4. Step 4: Simplify right side
    14,975.12x = 170,724,660.35
  5. Step 5: Solve for x
    x = 170,724,660.35/14,975.12
  6. Step 6: Final answer
    x = 11,400.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.