Home / 11,331.95-16,980.61-4,754.55

Finding the Fourth Proportional to 11,331.95, 16,980.61 and 4,754.55

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Solution

The fourth proportional to 11,331.95, 16,980.61 and 4,754.55 is: 7,124.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,331.95 : 16,980.61 = 4,754.55 : x
  2. Step 2: Convert to fraction form
    11,331.95/16,980.61 = 4,754.55/x
  3. Step 3: Cross multiply
    11,331.95x = 16,980.61 × 4,754.55
  4. Step 4: Simplify right side
    11,331.95x = 80,735,137.84
  5. Step 5: Solve for x
    x = 80,735,137.84/11,331.95
  6. Step 6: Final answer
    x = 7,124.56

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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.