Home / 10,918.23-16,377.90-3,126.84

Finding the Fourth Proportional to 10,918.23, 16,377.90 and 3,126.84

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Solution

The fourth proportional to 10,918.23, 16,377.90 and 3,126.84 is: 4,690.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,918.23 : 16,377.90 = 3,126.84 : x
  2. Step 2: Convert to fraction form
    10,918.23/16,377.90 = 3,126.84/x
  3. Step 3: Cross multiply
    10,918.23x = 16,377.90 × 3,126.84
  4. Step 4: Simplify right side
    10,918.23x = 51,211,072.84
  5. Step 5: Solve for x
    x = 51,211,072.84/10,918.23
  6. Step 6: Final answer
    x = 4,690.42

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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.