Home / 13,108.17-19,662.21-5,316.96

Finding the Fourth Proportional to 13,108.17, 19,662.21 and 5,316.96

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Solution

The fourth proportional to 13,108.17, 19,662.21 and 5,316.96 is: 7,975.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,108.17 : 19,662.21 = 5,316.96 : x
  2. Step 2: Convert to fraction form
    13,108.17/19,662.21 = 5,316.96/x
  3. Step 3: Cross multiply
    13,108.17x = 19,662.21 × 5,316.96
  4. Step 4: Simplify right side
    13,108.17x = 104,543,184.08
  5. Step 5: Solve for x
    x = 104,543,184.08/13,108.17
  6. Step 6: Final answer
    x = 7,975.42

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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.