Home / 13,412.24-20,111.61-4,644.80

Finding the Fourth Proportional to 13,412.24, 20,111.61 and 4,644.80

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Solution

The fourth proportional to 13,412.24, 20,111.61 and 4,644.80 is: 6,964.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412.24 : 20,111.61 = 4,644.80 : x
  2. Step 2: Convert to fraction form
    13,412.24/20,111.61 = 4,644.80/x
  3. Step 3: Cross multiply
    13,412.24x = 20,111.61 × 4,644.80
  4. Step 4: Simplify right side
    13,412.24x = 93,414,406.13
  5. Step 5: Solve for x
    x = 93,414,406.13/13,412.24
  6. Step 6: Final answer
    x = 6,964.86

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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.