Home / 11,877.66-17,817.30-4,480.74

Finding the Fourth Proportional to 11,877.66, 17,817.30 and 4,480.74

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Solution

The fourth proportional to 11,877.66, 17,817.30 and 4,480.74 is: 6,721.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,877.66 : 17,817.30 = 4,480.74 : x
  2. Step 2: Convert to fraction form
    11,877.66/17,817.30 = 4,480.74/x
  3. Step 3: Cross multiply
    11,877.66x = 17,817.30 × 4,480.74
  4. Step 4: Simplify right side
    11,877.66x = 79,834,688.80
  5. Step 5: Solve for x
    x = 79,834,688.80/11,877.66
  6. Step 6: Final answer
    x = 6,721.42

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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.