Home / 11,011.80-15,179.50-8,649.84

Finding the Fourth Proportional to 11,011.80, 15,179.50 and 8,649.84

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Solution

The fourth proportional to 11,011.80, 15,179.50 and 8,649.84 is: 11,923.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,011.80 : 15,179.50 = 8,649.84 : x
  2. Step 2: Convert to fraction form
    11,011.80/15,179.50 = 8,649.84/x
  3. Step 3: Cross multiply
    11,011.80x = 15,179.50 × 8,649.84
  4. Step 4: Simplify right side
    11,011.80x = 131,300,127.13
  5. Step 5: Solve for x
    x = 131,300,127.13/11,011.80
  6. Step 6: Final answer
    x = 11,923.59

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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.