Home / 10,709.19-16,057.80-3,311.55

Finding the Fourth Proportional to 10,709.19, 16,057.80 and 3,311.55

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Solution

The fourth proportional to 10,709.19, 16,057.80 and 3,311.55 is: 4,965.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,709.19 : 16,057.80 = 3,311.55 : x
  2. Step 2: Convert to fraction form
    10,709.19/16,057.80 = 3,311.55/x
  3. Step 3: Cross multiply
    10,709.19x = 16,057.80 × 3,311.55
  4. Step 4: Simplify right side
    10,709.19x = 53,176,207.59
  5. Step 5: Solve for x
    x = 53,176,207.59/10,709.19
  6. Step 6: Final answer
    x = 4,965.47

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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.