Home / 19,872.59-27,411.98-11,800.76

Finding the Fourth Proportional to 19,872.59, 27,411.98 and 11,800.76

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Solution

The fourth proportional to 19,872.59, 27,411.98 and 11,800.76 is: 16,277.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872.59 : 27,411.98 = 11,800.76 : x
  2. Step 2: Convert to fraction form
    19,872.59/27,411.98 = 11,800.76/x
  3. Step 3: Cross multiply
    19,872.59x = 27,411.98 × 11,800.76
  4. Step 4: Simplify right side
    19,872.59x = 323,482,001.04
  5. Step 5: Solve for x
    x = 323,482,001.04/19,872.59
  6. Step 6: Final answer
    x = 16,277.80

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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.