Home / 12,656.05-18,996.32-9,359.15

Finding the Fourth Proportional to 12,656.05, 18,996.32 and 9,359.15

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Solution

The fourth proportional to 12,656.05, 18,996.32 and 9,359.15 is: 14,047.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,656.05 : 18,996.32 = 9,359.15 : x
  2. Step 2: Convert to fraction form
    12,656.05/18,996.32 = 9,359.15/x
  3. Step 3: Cross multiply
    12,656.05x = 18,996.32 × 9,359.15
  4. Step 4: Simplify right side
    12,656.05x = 177,789,336.74
  5. Step 5: Solve for x
    x = 177,789,336.74/12,656.05
  6. Step 6: Final answer
    x = 14,047.78

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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.