Home / 14,294.89-21,455.41-7,279.75

Finding the Fourth Proportional to 14,294.89, 21,455.41 and 7,279.75

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Solution

The fourth proportional to 14,294.89, 21,455.41 and 7,279.75 is: 10,926.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,294.89 : 21,455.41 = 7,279.75 : x
  2. Step 2: Convert to fraction form
    14,294.89/21,455.41 = 7,279.75/x
  3. Step 3: Cross multiply
    14,294.89x = 21,455.41 × 7,279.75
  4. Step 4: Simplify right side
    14,294.89x = 156,190,020.95
  5. Step 5: Solve for x
    x = 156,190,020.95/14,294.89
  6. Step 6: Final answer
    x = 10,926.28

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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.