Home / 11,097.20-16,645.80-7,387.40

Finding the Fourth Proportional to 11,097.20, 16,645.80 and 7,387.40

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Solution

The fourth proportional to 11,097.20, 16,645.80 and 7,387.40 is: 11,081.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,097.20 : 16,645.80 = 7,387.40 : x
  2. Step 2: Convert to fraction form
    11,097.20/16,645.80 = 7,387.40/x
  3. Step 3: Cross multiply
    11,097.20x = 16,645.80 × 7,387.40
  4. Step 4: Simplify right side
    11,097.20x = 122,969,182.92
  5. Step 5: Solve for x
    x = 122,969,182.92/11,097.20
  6. Step 6: Final answer
    x = 11,081.10

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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.