Home / 13,186.56-19,772.64-5,388.96

Finding the Fourth Proportional to 13,186.56, 19,772.64 and 5,388.96

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Solution

The fourth proportional to 13,186.56, 19,772.64 and 5,388.96 is: 8,080.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186.56 : 19,772.64 = 5,388.96 : x
  2. Step 2: Convert to fraction form
    13,186.56/19,772.64 = 5,388.96/x
  3. Step 3: Cross multiply
    13,186.56x = 19,772.64 × 5,388.96
  4. Step 4: Simplify right side
    13,186.56x = 106,553,966.05
  5. Step 5: Solve for x
    x = 106,553,966.05/13,186.56
  6. Step 6: Final answer
    x = 8,080.50

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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.