Home / 14,128.65-19,453.17-11,999.70

Finding the Fourth Proportional to 14,128.65, 19,453.17 and 11,999.70

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Solution

The fourth proportional to 14,128.65, 19,453.17 and 11,999.70 is: 16,521.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,128.65 : 19,453.17 = 11,999.70 : x
  2. Step 2: Convert to fraction form
    14,128.65/19,453.17 = 11,999.70/x
  3. Step 3: Cross multiply
    14,128.65x = 19,453.17 × 11,999.70
  4. Step 4: Simplify right side
    14,128.65x = 233,432,204.05
  5. Step 5: Solve for x
    x = 233,432,204.05/14,128.65
  6. Step 6: Final answer
    x = 16,521.90

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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.