Home / 14,345.82-21,518.13-4,987.96

Finding the Fourth Proportional to 14,345.82, 21,518.13 and 4,987.96

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Solution

The fourth proportional to 14,345.82, 21,518.13 and 4,987.96 is: 7,481.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,345.82 : 21,518.13 = 4,987.96 : x
  2. Step 2: Convert to fraction form
    14,345.82/21,518.13 = 4,987.96/x
  3. Step 3: Cross multiply
    14,345.82x = 21,518.13 × 4,987.96
  4. Step 4: Simplify right side
    14,345.82x = 107,331,517.92
  5. Step 5: Solve for x
    x = 107,331,517.92/14,345.82
  6. Step 6: Final answer
    x = 7,481.73

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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.