Home / 11,145.40-16,725.42-4,219.96

Finding the Fourth Proportional to 11,145.40, 16,725.42 and 4,219.96

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Solution

The fourth proportional to 11,145.40, 16,725.42 and 4,219.96 is: 6,332.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,145.40 : 16,725.42 = 4,219.96 : x
  2. Step 2: Convert to fraction form
    11,145.40/16,725.42 = 4,219.96/x
  3. Step 3: Cross multiply
    11,145.40x = 16,725.42 × 4,219.96
  4. Step 4: Simplify right side
    11,145.40x = 70,580,603.38
  5. Step 5: Solve for x
    x = 70,580,603.38/11,145.40
  6. Step 6: Final answer
    x = 6,332.71

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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.