Home / 19,103.16-26,371.32-12,740.40

Finding the Fourth Proportional to 19,103.16, 26,371.32 and 12,740.40

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Solution

The fourth proportional to 19,103.16, 26,371.32 and 12,740.40 is: 17,587.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,103.16 : 26,371.32 = 12,740.40 : x
  2. Step 2: Convert to fraction form
    19,103.16/26,371.32 = 12,740.40/x
  3. Step 3: Cross multiply
    19,103.16x = 26,371.32 × 12,740.40
  4. Step 4: Simplify right side
    19,103.16x = 335,981,165.33
  5. Step 5: Solve for x
    x = 335,981,165.33/19,103.16
  6. Step 6: Final answer
    x = 17,587.73

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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.