Home / 14,615.60-21,811.30-11,310.80

Finding the Fourth Proportional to 14,615.60, 21,811.30 and 11,310.80

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Solution

The fourth proportional to 14,615.60, 21,811.30 and 11,310.80 is: 16,879.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,615.60 : 21,811.30 = 11,310.80 : x
  2. Step 2: Convert to fraction form
    14,615.60/21,811.30 = 11,310.80/x
  3. Step 3: Cross multiply
    14,615.60x = 21,811.30 × 11,310.80
  4. Step 4: Simplify right side
    14,615.60x = 246,703,252.04
  5. Step 5: Solve for x
    x = 246,703,252.04/14,615.60
  6. Step 6: Final answer
    x = 16,879.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.