Home / 18,155.55-27,234.69-5,007.80

Finding the Fourth Proportional to 18,155.55, 27,234.69 and 5,007.80

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Solution

The fourth proportional to 18,155.55, 27,234.69 and 5,007.80 is: 7,512.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,155.55 : 27,234.69 = 5,007.80 : x
  2. Step 2: Convert to fraction form
    18,155.55/27,234.69 = 5,007.80/x
  3. Step 3: Cross multiply
    18,155.55x = 27,234.69 × 5,007.80
  4. Step 4: Simplify right side
    18,155.55x = 136,385,880.58
  5. Step 5: Solve for x
    x = 136,385,880.58/18,155.55
  6. Step 6: Final answer
    x = 7,512.08

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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.