Home / 10,722.51-16,083.77-2,931.39

Finding the Fourth Proportional to 10,722.51, 16,083.77 and 2,931.39

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Solution

The fourth proportional to 10,722.51, 16,083.77 and 2,931.39 is: 4,397.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,722.51 : 16,083.77 = 2,931.39 : x
  2. Step 2: Convert to fraction form
    10,722.51/16,083.77 = 2,931.39/x
  3. Step 3: Cross multiply
    10,722.51x = 16,083.77 × 2,931.39
  4. Step 4: Simplify right side
    10,722.51x = 47,147,787.88
  5. Step 5: Solve for x
    x = 47,147,787.88/10,722.51
  6. Step 6: Final answer
    x = 4,397.09

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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.