Home / 13,080.96-19,612.80-11,145.60

Finding the Fourth Proportional to 13,080.96, 19,612.80 and 11,145.60

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Solution

The fourth proportional to 13,080.96, 19,612.80 and 11,145.60 is: 16,711.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080.96 : 19,612.80 = 11,145.60 : x
  2. Step 2: Convert to fraction form
    13,080.96/19,612.80 = 11,145.60/x
  3. Step 3: Cross multiply
    13,080.96x = 19,612.80 × 11,145.60
  4. Step 4: Simplify right side
    13,080.96x = 218,596,423.68
  5. Step 5: Solve for x
    x = 218,596,423.68/13,080.96
  6. Step 6: Final answer
    x = 16,711.04

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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.