Home / 11,858.18-17,787.29-11,136.47

Finding the Fourth Proportional to 11,858.18, 17,787.29 and 11,136.47

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Solution

The fourth proportional to 11,858.18, 17,787.29 and 11,136.47 is: 16,704.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,858.18 : 17,787.29 = 11,136.47 : x
  2. Step 2: Convert to fraction form
    11,858.18/17,787.29 = 11,136.47/x
  3. Step 3: Cross multiply
    11,858.18x = 17,787.29 × 11,136.47
  4. Step 4: Simplify right side
    11,858.18x = 198,087,621.47
  5. Step 5: Solve for x
    x = 198,087,621.47/11,858.18
  6. Step 6: Final answer
    x = 16,704.72

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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.