Home / 19,112.10-28,668.13-12,536.72

Finding the Fourth Proportional to 19,112.10, 28,668.13 and 12,536.72

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Solution

The fourth proportional to 19,112.10, 28,668.13 and 12,536.72 is: 18,805.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,112.10 : 28,668.13 = 12,536.72 : x
  2. Step 2: Convert to fraction form
    19,112.10/28,668.13 = 12,536.72/x
  3. Step 3: Cross multiply
    19,112.10x = 28,668.13 × 12,536.72
  4. Step 4: Simplify right side
    19,112.10x = 359,404,412.81
  5. Step 5: Solve for x
    x = 359,404,412.81/19,112.10
  6. Step 6: Final answer
    x = 18,805.07

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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.