Home / 14,290.12-21,435.99-4,930.57

Finding the Fourth Proportional to 14,290.12, 21,435.99 and 4,930.57

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Solution

The fourth proportional to 14,290.12, 21,435.99 and 4,930.57 is: 7,396.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,290.12 : 21,435.99 = 4,930.57 : x
  2. Step 2: Convert to fraction form
    14,290.12/21,435.99 = 4,930.57/x
  3. Step 3: Cross multiply
    14,290.12x = 21,435.99 × 4,930.57
  4. Step 4: Simplify right side
    14,290.12x = 105,691,649.21
  5. Step 5: Solve for x
    x = 105,691,649.21/14,290.12
  6. Step 6: Final answer
    x = 7,396.13

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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.