Home / 9,420.68-14,136.70-3,582.20

Finding the Fourth Proportional to 9,420.68, 14,136.70 and 3,582.20

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Solution

The fourth proportional to 9,420.68, 14,136.70 and 3,582.20 is: 5,375.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,420.68 : 14,136.70 = 3,582.20 : x
  2. Step 2: Convert to fraction form
    9,420.68/14,136.70 = 3,582.20/x
  3. Step 3: Cross multiply
    9,420.68x = 14,136.70 × 3,582.20
  4. Step 4: Simplify right side
    9,420.68x = 50,640,486.74
  5. Step 5: Solve for x
    x = 50,640,486.74/9,420.68
  6. Step 6: Final answer
    x = 5,375.46

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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.