Home / 13,919.91-20,885.33-6,123.25

Finding the Fourth Proportional to 13,919.91, 20,885.33 and 6,123.25

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Solution

The fourth proportional to 13,919.91, 20,885.33 and 6,123.25 is: 9,187.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.91 : 20,885.33 = 6,123.25 : x
  2. Step 2: Convert to fraction form
    13,919.91/20,885.33 = 6,123.25/x
  3. Step 3: Cross multiply
    13,919.91x = 20,885.33 × 6,123.25
  4. Step 4: Simplify right side
    13,919.91x = 127,886,096.92
  5. Step 5: Solve for x
    x = 127,886,096.92/13,919.91
  6. Step 6: Final answer
    x = 9,187.28

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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.