Home / 11,253.40-16,880.10-11,080.60

Finding the Fourth Proportional to 11,253.40, 16,880.10 and 11,080.60

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Solution

The fourth proportional to 11,253.40, 16,880.10 and 11,080.60 is: 16,620.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,253.40 : 16,880.10 = 11,080.60 : x
  2. Step 2: Convert to fraction form
    11,253.40/16,880.10 = 11,080.60/x
  3. Step 3: Cross multiply
    11,253.40x = 16,880.10 × 11,080.60
  4. Step 4: Simplify right side
    11,253.40x = 187,041,636.06
  5. Step 5: Solve for x
    x = 187,041,636.06/11,253.40
  6. Step 6: Final answer
    x = 16,620.90

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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.