Home / 14,179.72-19,568.02-7,891.96

Finding the Fourth Proportional to 14,179.72, 19,568.02 and 7,891.96

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Solution

The fourth proportional to 14,179.72, 19,568.02 and 7,891.96 is: 10,890.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,179.72 : 19,568.02 = 7,891.96 : x
  2. Step 2: Convert to fraction form
    14,179.72/19,568.02 = 7,891.96/x
  3. Step 3: Cross multiply
    14,179.72x = 19,568.02 × 7,891.96
  4. Step 4: Simplify right side
    14,179.72x = 154,430,031.12
  5. Step 5: Solve for x
    x = 154,430,031.12/14,179.72
  6. Step 6: Final answer
    x = 10,890.91

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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.