Home / 11,325.56-16,990.77-4,747.97

Finding the Fourth Proportional to 11,325.56, 16,990.77 and 4,747.97

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Solution

The fourth proportional to 11,325.56, 16,990.77 and 4,747.97 is: 7,122.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,325.56 : 16,990.77 = 4,747.97 : x
  2. Step 2: Convert to fraction form
    11,325.56/16,990.77 = 4,747.97/x
  3. Step 3: Cross multiply
    11,325.56x = 16,990.77 × 4,747.97
  4. Step 4: Simplify right side
    11,325.56x = 80,671,666.24
  5. Step 5: Solve for x
    x = 80,671,666.24/11,325.56
  6. Step 6: Final answer
    x = 7,122.97

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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.