Home / 14,021.12-19,348.88-7,647.72

Finding the Fourth Proportional to 14,021.12, 19,348.88 and 7,647.72

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Solution

The fourth proportional to 14,021.12, 19,348.88 and 7,647.72 is: 10,553.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,021.12 : 19,348.88 = 7,647.72 : x
  2. Step 2: Convert to fraction form
    14,021.12/19,348.88 = 7,647.72/x
  3. Step 3: Cross multiply
    14,021.12x = 19,348.88 × 7,647.72
  4. Step 4: Simplify right side
    14,021.12x = 147,974,778.32
  5. Step 5: Solve for x
    x = 147,974,778.32/14,021.12
  6. Step 6: Final answer
    x = 10,553.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.