Home / 11,220.41-16,830.63-4,200.14

Finding the Fourth Proportional to 11,220.41, 16,830.63 and 4,200.14

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Solution

The fourth proportional to 11,220.41, 16,830.63 and 4,200.14 is: 6,300.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.41 : 16,830.63 = 4,200.14 : x
  2. Step 2: Convert to fraction form
    11,220.41/16,830.63 = 4,200.14/x
  3. Step 3: Cross multiply
    11,220.41x = 16,830.63 × 4,200.14
  4. Step 4: Simplify right side
    11,220.41x = 70,690,918.14
  5. Step 5: Solve for x
    x = 70,690,918.14/11,220.41
  6. Step 6: Final answer
    x = 6,300.21

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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.