Home / 14,949.75-20,631.59-8,235.38

Finding the Fourth Proportional to 14,949.75, 20,631.59 and 8,235.38

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Solution

The fourth proportional to 14,949.75, 20,631.59 and 8,235.38 is: 11,365.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,949.75 : 20,631.59 = 8,235.38 : x
  2. Step 2: Convert to fraction form
    14,949.75/20,631.59 = 8,235.38/x
  3. Step 3: Cross multiply
    14,949.75x = 20,631.59 × 8,235.38
  4. Step 4: Simplify right side
    14,949.75x = 169,909,055.82
  5. Step 5: Solve for x
    x = 169,909,055.82/14,949.75
  6. Step 6: Final answer
    x = 11,365.34

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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.