Home / 11,970.50-17,955.23-4,072.70

Finding the Fourth Proportional to 11,970.50, 17,955.23 and 4,072.70

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Solution

The fourth proportional to 11,970.50, 17,955.23 and 4,072.70 is: 6,108.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,970.50 : 17,955.23 = 4,072.70 : x
  2. Step 2: Convert to fraction form
    11,970.50/17,955.23 = 4,072.70/x
  3. Step 3: Cross multiply
    11,970.50x = 17,955.23 × 4,072.70
  4. Step 4: Simplify right side
    11,970.50x = 73,126,289.75
  5. Step 5: Solve for x
    x = 73,126,289.75/11,970.50
  6. Step 6: Final answer
    x = 6,108.88

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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.