Home / 14,578.90-21,869.16-4,190.38

Finding the Fourth Proportional to 14,578.90, 21,869.16 and 4,190.38

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Solution

The fourth proportional to 14,578.90, 21,869.16 and 4,190.38 is: 6,285.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,578.90 : 21,869.16 = 4,190.38 : x
  2. Step 2: Convert to fraction form
    14,578.90/21,869.16 = 4,190.38/x
  3. Step 3: Cross multiply
    14,578.90x = 21,869.16 × 4,190.38
  4. Step 4: Simplify right side
    14,578.90x = 91,640,090.68
  5. Step 5: Solve for x
    x = 91,640,090.68/14,578.90
  6. Step 6: Final answer
    x = 6,285.80

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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.