Home / 17,605.05-26,409.30-5,125.20

Finding the Fourth Proportional to 17,605.05, 26,409.30 and 5,125.20

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Solution

The fourth proportional to 17,605.05, 26,409.30 and 5,125.20 is: 7,688.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,605.05 : 26,409.30 = 5,125.20 : x
  2. Step 2: Convert to fraction form
    17,605.05/26,409.30 = 5,125.20/x
  3. Step 3: Cross multiply
    17,605.05x = 26,409.30 × 5,125.20
  4. Step 4: Simplify right side
    17,605.05x = 135,352,944.36
  5. Step 5: Solve for x
    x = 135,352,944.36/17,605.05
  6. Step 6: Final answer
    x = 7,688.30

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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.