Home / 11,299.75-16,955.54-8,205.32

Finding the Fourth Proportional to 11,299.75, 16,955.54 and 8,205.32

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Solution

The fourth proportional to 11,299.75, 16,955.54 and 8,205.32 is: 12,312.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,299.75 : 16,955.54 = 8,205.32 : x
  2. Step 2: Convert to fraction form
    11,299.75/16,955.54 = 8,205.32/x
  3. Step 3: Cross multiply
    11,299.75x = 16,955.54 × 8,205.32
  4. Step 4: Simplify right side
    11,299.75x = 139,125,631.47
  5. Step 5: Solve for x
    x = 139,125,631.47/11,299.75
  6. Step 6: Final answer
    x = 12,312.28

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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.