Home / 11,005.80-16,503.90-4,429.80

Finding the Fourth Proportional to 11,005.80, 16,503.90 and 4,429.80

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Solution

The fourth proportional to 11,005.80, 16,503.90 and 4,429.80 is: 6,642.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,005.80 : 16,503.90 = 4,429.80 : x
  2. Step 2: Convert to fraction form
    11,005.80/16,503.90 = 4,429.80/x
  3. Step 3: Cross multiply
    11,005.80x = 16,503.90 × 4,429.80
  4. Step 4: Simplify right side
    11,005.80x = 73,108,976.22
  5. Step 5: Solve for x
    x = 73,108,976.22/11,005.80
  6. Step 6: Final answer
    x = 6,642.77

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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.