Home / 15,745.14-21,726.68-9,029.21

Finding the Fourth Proportional to 15,745.14, 21,726.68 and 9,029.21

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Solution

The fourth proportional to 15,745.14, 21,726.68 and 9,029.21 is: 12,459.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,745.14 : 21,726.68 = 9,029.21 : x
  2. Step 2: Convert to fraction form
    15,745.14/21,726.68 = 9,029.21/x
  3. Step 3: Cross multiply
    15,745.14x = 21,726.68 × 9,029.21
  4. Step 4: Simplify right side
    15,745.14x = 196,174,602.54
  5. Step 5: Solve for x
    x = 196,174,602.54/15,745.14
  6. Step 6: Final answer
    x = 12,459.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.