Home / 11,281.38-16,912.35-5,442.09

Finding the Fourth Proportional to 11,281.38, 16,912.35 and 5,442.09

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Solution

The fourth proportional to 11,281.38, 16,912.35 and 5,442.09 is: 8,158.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,281.38 : 16,912.35 = 5,442.09 : x
  2. Step 2: Convert to fraction form
    11,281.38/16,912.35 = 5,442.09/x
  3. Step 3: Cross multiply
    11,281.38x = 16,912.35 × 5,442.09
  4. Step 4: Simplify right side
    11,281.38x = 92,038,530.81
  5. Step 5: Solve for x
    x = 92,038,530.81/11,281.38
  6. Step 6: Final answer
    x = 8,158.45

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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.