Home / 13,090.90-19,635.87-5,695.36

Finding the Fourth Proportional to 13,090.90, 19,635.87 and 5,695.36

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Solution

The fourth proportional to 13,090.90, 19,635.87 and 5,695.36 is: 8,542.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,090.90 : 19,635.87 = 5,695.36 : x
  2. Step 2: Convert to fraction form
    13,090.90/19,635.87 = 5,695.36/x
  3. Step 3: Cross multiply
    13,090.90x = 19,635.87 × 5,695.36
  4. Step 4: Simplify right side
    13,090.90x = 111,833,348.56
  5. Step 5: Solve for x
    x = 111,833,348.56/13,090.90
  6. Step 6: Final answer
    x = 8,542.83

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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.