Home / 11,300.20-16,950.30-2,980.20

Finding the Fourth Proportional to 11,300.20, 16,950.30 and 2,980.20

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Solution

The fourth proportional to 11,300.20, 16,950.30 and 2,980.20 is: 4,470.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,300.20 : 16,950.30 = 2,980.20 : x
  2. Step 2: Convert to fraction form
    11,300.20/16,950.30 = 2,980.20/x
  3. Step 3: Cross multiply
    11,300.20x = 16,950.30 × 2,980.20
  4. Step 4: Simplify right side
    11,300.20x = 50,515,284.06
  5. Step 5: Solve for x
    x = 50,515,284.06/11,300.20
  6. Step 6: Final answer
    x = 4,470.30

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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.