Home / 11,328.05-16,990.48-3,008.80

Finding the Fourth Proportional to 11,328.05, 16,990.48 and 3,008.80

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Solution

The fourth proportional to 11,328.05, 16,990.48 and 3,008.80 is: 4,512.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,328.05 : 16,990.48 = 3,008.80 : x
  2. Step 2: Convert to fraction form
    11,328.05/16,990.48 = 3,008.80/x
  3. Step 3: Cross multiply
    11,328.05x = 16,990.48 × 3,008.80
  4. Step 4: Simplify right side
    11,328.05x = 51,120,894.11
  5. Step 5: Solve for x
    x = 51,120,894.11/11,328.05
  6. Step 6: Final answer
    x = 4,512.77

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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.