Home / 11,217.20-16,825.80-9,030.20

Finding the Fourth Proportional to 11,217.20, 16,825.80 and 9,030.20

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Solution

The fourth proportional to 11,217.20, 16,825.80 and 9,030.20 is: 13,545.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,217.20 : 16,825.80 = 9,030.20 : x
  2. Step 2: Convert to fraction form
    11,217.20/16,825.80 = 9,030.20/x
  3. Step 3: Cross multiply
    11,217.20x = 16,825.80 × 9,030.20
  4. Step 4: Simplify right side
    11,217.20x = 151,940,339.16
  5. Step 5: Solve for x
    x = 151,940,339.16/11,217.20
  6. Step 6: Final answer
    x = 13,545.30

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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.