Home / 11,220.15-16,830.26-5,295.12

Finding the Fourth Proportional to 11,220.15, 16,830.26 and 5,295.12

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Solution

The fourth proportional to 11,220.15, 16,830.26 and 5,295.12 is: 7,942.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.15 : 16,830.26 = 5,295.12 : x
  2. Step 2: Convert to fraction form
    11,220.15/16,830.26 = 5,295.12/x
  3. Step 3: Cross multiply
    11,220.15x = 16,830.26 × 5,295.12
  4. Step 4: Simplify right side
    11,220.15x = 89,118,256.38
  5. Step 5: Solve for x
    x = 89,118,256.38/11,220.15
  6. Step 6: Final answer
    x = 7,942.70

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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.