Home / 18,306.36-25,253.49-11,580.66

Finding the Fourth Proportional to 18,306.36, 25,253.49 and 11,580.66

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Solution

The fourth proportional to 18,306.36, 25,253.49 and 11,580.66 is: 15,975.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,306.36 : 25,253.49 = 11,580.66 : x
  2. Step 2: Convert to fraction form
    18,306.36/25,253.49 = 11,580.66/x
  3. Step 3: Cross multiply
    18,306.36x = 25,253.49 × 11,580.66
  4. Step 4: Simplify right side
    18,306.36x = 292,452,081.50
  5. Step 5: Solve for x
    x = 292,452,081.50/18,306.36
  6. Step 6: Final answer
    x = 15,975.44

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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.