Home / 11,227.60-16,815.80-7,080.40

Finding the Fourth Proportional to 11,227.60, 16,815.80 and 7,080.40

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Solution

The fourth proportional to 11,227.60, 16,815.80 and 7,080.40 is: 10,604.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,227.60 : 16,815.80 = 7,080.40 : x
  2. Step 2: Convert to fraction form
    11,227.60/16,815.80 = 7,080.40/x
  3. Step 3: Cross multiply
    11,227.60x = 16,815.80 × 7,080.40
  4. Step 4: Simplify right side
    11,227.60x = 119,062,590.32
  5. Step 5: Solve for x
    x = 119,062,590.32/11,227.60
  6. Step 6: Final answer
    x = 10,604.46

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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.