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Finding the Fourth Proportional to 11,079.09, 16,619.40 and 4,505.40

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Solution

The fourth proportional to 11,079.09, 16,619.40 and 4,505.40 is: 6,758.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,079.09 : 16,619.40 = 4,505.40 : x
  2. Step 2: Convert to fraction form
    11,079.09/16,619.40 = 4,505.40/x
  3. Step 3: Cross multiply
    11,079.09x = 16,619.40 × 4,505.40
  4. Step 4: Simplify right side
    11,079.09x = 74,877,044.76
  5. Step 5: Solve for x
    x = 74,877,044.76/11,079.09
  6. Step 6: Final answer
    x = 6,758.41

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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.