Home / 18,613.36-27,917.16-12,085.84

Finding the Fourth Proportional to 18,613.36, 27,917.16 and 12,085.84

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Solution

The fourth proportional to 18,613.36, 27,917.16 and 12,085.84 is: 18,126.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,613.36 : 27,917.16 = 12,085.84 : x
  2. Step 2: Convert to fraction form
    18,613.36/27,917.16 = 12,085.84/x
  3. Step 3: Cross multiply
    18,613.36x = 27,917.16 × 12,085.84
  4. Step 4: Simplify right side
    18,613.36x = 337,402,329.01
  5. Step 5: Solve for x
    x = 337,402,329.01/18,613.36
  6. Step 6: Final answer
    x = 18,126.89

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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.