Home / 19,488.86-26,876.68-12,772.04

Finding the Fourth Proportional to 19,488.86, 26,876.68 and 12,772.04

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Solution

The fourth proportional to 19,488.86, 26,876.68 and 12,772.04 is: 17,613.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,488.86 : 26,876.68 = 12,772.04 : x
  2. Step 2: Convert to fraction form
    19,488.86/26,876.68 = 12,772.04/x
  3. Step 3: Cross multiply
    19,488.86x = 26,876.68 × 12,772.04
  4. Step 4: Simplify right side
    19,488.86x = 343,270,032.03
  5. Step 5: Solve for x
    x = 343,270,032.03/19,488.86
  6. Step 6: Final answer
    x = 17,613.65

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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.