Home / 19,090.76-28,640.26-5,762.65

Finding the Fourth Proportional to 19,090.76, 28,640.26 and 5,762.65

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Solution

The fourth proportional to 19,090.76, 28,640.26 and 5,762.65 is: 8,645.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,090.76 : 28,640.26 = 5,762.65 : x
  2. Step 2: Convert to fraction form
    19,090.76/28,640.26 = 5,762.65/x
  3. Step 3: Cross multiply
    19,090.76x = 28,640.26 × 5,762.65
  4. Step 4: Simplify right side
    19,090.76x = 165,043,794.29
  5. Step 5: Solve for x
    x = 165,043,794.29/19,090.76
  6. Step 6: Final answer
    x = 8,645.22

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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.