Home / 18,650.15-27,975.30-7,557.05

Finding the Fourth Proportional to 18,650.15, 27,975.30 and 7,557.05

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Solution

The fourth proportional to 18,650.15, 27,975.30 and 7,557.05 is: 11,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,650.15 : 27,975.30 = 7,557.05 : x
  2. Step 2: Convert to fraction form
    18,650.15/27,975.30 = 7,557.05/x
  3. Step 3: Cross multiply
    18,650.15x = 27,975.30 × 7,557.05
  4. Step 4: Simplify right side
    18,650.15x = 211,410,600.99
  5. Step 5: Solve for x
    x = 211,410,600.99/18,650.15
  6. Step 6: Final answer
    x = 11,335.60

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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.