Home / 18,176.67-25,085.70-11,107.80

Finding the Fourth Proportional to 18,176.67, 25,085.70 and 11,107.80

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Solution

The fourth proportional to 18,176.67, 25,085.70 and 11,107.80 is: 15,329.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,176.67 : 25,085.70 = 11,107.80 : x
  2. Step 2: Convert to fraction form
    18,176.67/25,085.70 = 11,107.80/x
  3. Step 3: Cross multiply
    18,176.67x = 25,085.70 × 11,107.80
  4. Step 4: Simplify right side
    18,176.67x = 278,646,938.46
  5. Step 5: Solve for x
    x = 278,646,938.46/18,176.67
  6. Step 6: Final answer
    x = 15,329.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.