Home / 11,239.40-16,859.10-3,448.20

Finding the Fourth Proportional to 11,239.40, 16,859.10 and 3,448.20

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Solution

The fourth proportional to 11,239.40, 16,859.10 and 3,448.20 is: 5,172.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239.40 : 16,859.10 = 3,448.20 : x
  2. Step 2: Convert to fraction form
    11,239.40/16,859.10 = 3,448.20/x
  3. Step 3: Cross multiply
    11,239.40x = 16,859.10 × 3,448.20
  4. Step 4: Simplify right side
    11,239.40x = 58,133,548.62
  5. Step 5: Solve for x
    x = 58,133,548.62/11,239.40
  6. Step 6: Final answer
    x = 5,172.30

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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.