Home / 18,962.09-28,409.08-11,166.65

Finding the Fourth Proportional to 18,962.09, 28,409.08 and 11,166.65

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Solution

The fourth proportional to 18,962.09, 28,409.08 and 11,166.65 is: 16,729.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,962.09 : 28,409.08 = 11,166.65 : x
  2. Step 2: Convert to fraction form
    18,962.09/28,409.08 = 11,166.65/x
  3. Step 3: Cross multiply
    18,962.09x = 28,409.08 × 11,166.65
  4. Step 4: Simplify right side
    18,962.09x = 317,234,253.18
  5. Step 5: Solve for x
    x = 317,234,253.18/18,962.09
  6. Step 6: Final answer
    x = 16,729.92

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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.