Home / 8,320.06-12,476.40-3,122.26

Finding the Fourth Proportional to 8,320.06, 12,476.40 and 3,122.26

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Solution

The fourth proportional to 8,320.06, 12,476.40 and 3,122.26 is: 4,682.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.06 : 12,476.40 = 3,122.26 : x
  2. Step 2: Convert to fraction form
    8,320.06/12,476.40 = 3,122.26/x
  3. Step 3: Cross multiply
    8,320.06x = 12,476.40 × 3,122.26
  4. Step 4: Simplify right side
    8,320.06x = 38,954,564.66
  5. Step 5: Solve for x
    x = 38,954,564.66/8,320.06
  6. Step 6: Final answer
    x = 4,682.01

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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.