Home / 14,331.98-19,777.90-7,958.58

Finding the Fourth Proportional to 14,331.98, 19,777.90 and 7,958.58

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Solution

The fourth proportional to 14,331.98, 19,777.90 and 7,958.58 is: 10,982.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,331.98 : 19,777.90 = 7,958.58 : x
  2. Step 2: Convert to fraction form
    14,331.98/19,777.90 = 7,958.58/x
  3. Step 3: Cross multiply
    14,331.98x = 19,777.90 × 7,958.58
  4. Step 4: Simplify right side
    14,331.98x = 157,403,999.38
  5. Step 5: Solve for x
    x = 157,403,999.38/14,331.98
  6. Step 6: Final answer
    x = 10,982.71

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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.