Home / 19,600.65-27,060.12-12,905.74

Finding the Fourth Proportional to 19,600.65, 27,060.12 and 12,905.74

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Solution

The fourth proportional to 19,600.65, 27,060.12 and 12,905.74 is: 17,817.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,600.65 : 27,060.12 = 12,905.74 : x
  2. Step 2: Convert to fraction form
    19,600.65/27,060.12 = 12,905.74/x
  3. Step 3: Cross multiply
    19,600.65x = 27,060.12 × 12,905.74
  4. Step 4: Simplify right side
    19,600.65x = 349,230,873.09
  5. Step 5: Solve for x
    x = 349,230,873.09/19,600.65
  6. Step 6: Final answer
    x = 17,817.31

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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.