Home / 17,608.65-26,417.30-5,128.79

Finding the Fourth Proportional to 17,608.65, 26,417.30 and 5,128.79

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Solution

The fourth proportional to 17,608.65, 26,417.30 and 5,128.79 is: 7,694.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,608.65 : 26,417.30 = 5,128.79 : x
  2. Step 2: Convert to fraction form
    17,608.65/26,417.30 = 5,128.79/x
  3. Step 3: Cross multiply
    17,608.65x = 26,417.30 × 5,128.79
  4. Step 4: Simplify right side
    17,608.65x = 135,488,626.34
  5. Step 5: Solve for x
    x = 135,488,626.34/17,608.65
  6. Step 6: Final answer
    x = 7,694.44

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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.