Home / 12,896.50-19,343.73-4,129.06

Finding the Fourth Proportional to 12,896.50, 19,343.73 and 4,129.06

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Solution

The fourth proportional to 12,896.50, 19,343.73 and 4,129.06 is: 6,193.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,896.50 : 19,343.73 = 4,129.06 : x
  2. Step 2: Convert to fraction form
    12,896.50/19,343.73 = 4,129.06/x
  3. Step 3: Cross multiply
    12,896.50x = 19,343.73 × 4,129.06
  4. Step 4: Simplify right side
    12,896.50x = 79,871,421.79
  5. Step 5: Solve for x
    x = 79,871,421.79/12,896.50
  6. Step 6: Final answer
    x = 6,193.26

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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.