Home / 18,962.18-28,442.21-5,814.51

Finding the Fourth Proportional to 18,962.18, 28,442.21 and 5,814.51

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Solution

The fourth proportional to 18,962.18, 28,442.21 and 5,814.51 is: 8,721.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,962.18 : 28,442.21 = 5,814.51 : x
  2. Step 2: Convert to fraction form
    18,962.18/28,442.21 = 5,814.51/x
  3. Step 3: Cross multiply
    18,962.18x = 28,442.21 × 5,814.51
  4. Step 4: Simplify right side
    18,962.18x = 165,377,592.05
  5. Step 5: Solve for x
    x = 165,377,592.05/18,962.18
  6. Step 6: Final answer
    x = 8,721.44

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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.