Home / 18,018.40-27,029.98-5,539.28

Finding the Fourth Proportional to 18,018.40, 27,029.98 and 5,539.28

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Solution

The fourth proportional to 18,018.40, 27,029.98 and 5,539.28 is: 8,309.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,018.40 : 27,029.98 = 5,539.28 : x
  2. Step 2: Convert to fraction form
    18,018.40/27,029.98 = 5,539.28/x
  3. Step 3: Cross multiply
    18,018.40x = 27,029.98 × 5,539.28
  4. Step 4: Simplify right side
    18,018.40x = 149,726,627.61
  5. Step 5: Solve for x
    x = 149,726,627.61/18,018.40
  6. Step 6: Final answer
    x = 8,309.65

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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.