Home / 11,209.36-16,815.26-4,192.74

Finding the Fourth Proportional to 11,209.36, 16,815.26 and 4,192.74

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Solution

The fourth proportional to 11,209.36, 16,815.26 and 4,192.74 is: 6,289.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,209.36 : 16,815.26 = 4,192.74 : x
  2. Step 2: Convert to fraction form
    11,209.36/16,815.26 = 4,192.74/x
  3. Step 3: Cross multiply
    11,209.36x = 16,815.26 × 4,192.74
  4. Step 4: Simplify right side
    11,209.36x = 70,502,013.21
  5. Step 5: Solve for x
    x = 70,502,013.21/11,209.36
  6. Step 6: Final answer
    x = 6,289.57

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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.