Home / 14,220.45-19,623.15-8,169.45

Finding the Fourth Proportional to 14,220.45, 19,623.15 and 8,169.45

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Solution

The fourth proportional to 14,220.45, 19,623.15 and 8,169.45 is: 11,273.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,220.45 : 19,623.15 = 8,169.45 : x
  2. Step 2: Convert to fraction form
    14,220.45/19,623.15 = 8,169.45/x
  3. Step 3: Cross multiply
    14,220.45x = 19,623.15 × 8,169.45
  4. Step 4: Simplify right side
    14,220.45x = 160,310,342.77
  5. Step 5: Solve for x
    x = 160,310,342.77/14,220.45
  6. Step 6: Final answer
    x = 11,273.23

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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.