Home / 14,833.16-20,469.40-8,118.78

Finding the Fourth Proportional to 14,833.16, 20,469.40 and 8,118.78

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Solution

The fourth proportional to 14,833.16, 20,469.40 and 8,118.78 is: 11,203.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,833.16 : 20,469.40 = 8,118.78 : x
  2. Step 2: Convert to fraction form
    14,833.16/20,469.40 = 8,118.78/x
  3. Step 3: Cross multiply
    14,833.16x = 20,469.40 × 8,118.78
  4. Step 4: Simplify right side
    14,833.16x = 166,186,555.33
  5. Step 5: Solve for x
    x = 166,186,555.33/14,833.16
  6. Step 6: Final answer
    x = 11,203.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.