Home / 19,897.06-27,451.11-12,340.69

Finding the Fourth Proportional to 19,897.06, 27,451.11 and 12,340.69

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Solution

The fourth proportional to 19,897.06, 27,451.11 and 12,340.69 is: 17,025.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,897.06 : 27,451.11 = 12,340.69 : x
  2. Step 2: Convert to fraction form
    19,897.06/27,451.11 = 12,340.69/x
  3. Step 3: Cross multiply
    19,897.06x = 27,451.11 × 12,340.69
  4. Step 4: Simplify right side
    19,897.06x = 338,765,638.67
  5. Step 5: Solve for x
    x = 338,765,638.67/19,897.06
  6. Step 6: Final answer
    x = 17,025.91

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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.