Home / 18,721.41-28,072.72-6,237.04

Finding the Fourth Proportional to 18,721.41, 28,072.72 and 6,237.04

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Solution

The fourth proportional to 18,721.41, 28,072.72 and 6,237.04 is: 9,352.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721.41 : 28,072.72 = 6,237.04 : x
  2. Step 2: Convert to fraction form
    18,721.41/28,072.72 = 6,237.04/x
  3. Step 3: Cross multiply
    18,721.41x = 28,072.72 × 6,237.04
  4. Step 4: Simplify right side
    18,721.41x = 175,090,677.55
  5. Step 5: Solve for x
    x = 175,090,677.55/18,721.41
  6. Step 6: Final answer
    x = 9,352.43

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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.