Home / 14,331.33-19,777.44-7,871.50

Finding the Fourth Proportional to 14,331.33, 19,777.44 and 7,871.50

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Solution

The fourth proportional to 14,331.33, 19,777.44 and 7,871.50 is: 10,862.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,331.33 : 19,777.44 = 7,871.50 : x
  2. Step 2: Convert to fraction form
    14,331.33/19,777.44 = 7,871.50/x
  3. Step 3: Cross multiply
    14,331.33x = 19,777.44 × 7,871.50
  4. Step 4: Simplify right side
    14,331.33x = 155,678,118.96
  5. Step 5: Solve for x
    x = 155,678,118.96/14,331.33
  6. Step 6: Final answer
    x = 10,862.78

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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.