Home / 19,964.93-27,560.45-12,894.80

Finding the Fourth Proportional to 19,964.93, 27,560.45 and 12,894.80

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Solution

The fourth proportional to 19,964.93, 27,560.45 and 12,894.80 is: 17,800.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,964.93 : 27,560.45 = 12,894.80 : x
  2. Step 2: Convert to fraction form
    19,964.93/27,560.45 = 12,894.80/x
  3. Step 3: Cross multiply
    19,964.93x = 27,560.45 × 12,894.80
  4. Step 4: Simplify right side
    19,964.93x = 355,386,385.09
  5. Step 5: Solve for x
    x = 355,386,385.09/19,964.93
  6. Step 6: Final answer
    x = 17,800.54

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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.