Home / 14,363.80-21,561.90-11,091.40

Finding the Fourth Proportional to 14,363.80, 21,561.90 and 11,091.40

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Solution

The fourth proportional to 14,363.80, 21,561.90 and 11,091.40 is: 16,649.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,363.80 : 21,561.90 = 11,091.40 : x
  2. Step 2: Convert to fraction form
    14,363.80/21,561.90 = 11,091.40/x
  3. Step 3: Cross multiply
    14,363.80x = 21,561.90 × 11,091.40
  4. Step 4: Simplify right side
    14,363.80x = 239,151,657.66
  5. Step 5: Solve for x
    x = 239,151,657.66/14,363.80
  6. Step 6: Final answer
    x = 16,649.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.