Home / 12,761.36-19,142.40-3,527.36

Finding the Fourth Proportional to 12,761.36, 19,142.40 and 3,527.36

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Solution

The fourth proportional to 12,761.36, 19,142.40 and 3,527.36 is: 5,291.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,761.36 : 19,142.40 = 3,527.36 : x
  2. Step 2: Convert to fraction form
    12,761.36/19,142.40 = 3,527.36/x
  3. Step 3: Cross multiply
    12,761.36x = 19,142.40 × 3,527.36
  4. Step 4: Simplify right side
    12,761.36x = 67,522,136.06
  5. Step 5: Solve for x
    x = 67,522,136.06/12,761.36
  6. Step 6: Final answer
    x = 5,291.14

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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.