Home / 18,018.88-27,030.90-5,539.95

Finding the Fourth Proportional to 18,018.88, 27,030.90 and 5,539.95

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Solution

The fourth proportional to 18,018.88, 27,030.90 and 5,539.95 is: 8,310.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,018.88 : 27,030.90 = 5,539.95 : x
  2. Step 2: Convert to fraction form
    18,018.88/27,030.90 = 5,539.95/x
  3. Step 3: Cross multiply
    18,018.88x = 27,030.90 × 5,539.95
  4. Step 4: Simplify right side
    18,018.88x = 149,749,834.46
  5. Step 5: Solve for x
    x = 149,749,834.46/18,018.88
  6. Step 6: Final answer
    x = 8,310.72

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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.