Home / 13,127.99-19,686.06-3,765.88

Finding the Fourth Proportional to 13,127.99, 19,686.06 and 3,765.88

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Solution

The fourth proportional to 13,127.99, 19,686.06 and 3,765.88 is: 5,647.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,127.99 : 19,686.06 = 3,765.88 : x
  2. Step 2: Convert to fraction form
    13,127.99/19,686.06 = 3,765.88/x
  3. Step 3: Cross multiply
    13,127.99x = 19,686.06 × 3,765.88
  4. Step 4: Simplify right side
    13,127.99x = 74,135,430.20
  5. Step 5: Solve for x
    x = 74,135,430.20/13,127.99
  6. Step 6: Final answer
    x = 5,647.13

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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.