Home / 10,871.60-16,310.29-3,476.20

Finding the Fourth Proportional to 10,871.60, 16,310.29 and 3,476.20

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Solution

The fourth proportional to 10,871.60, 16,310.29 and 3,476.20 is: 5,215.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,871.60 : 16,310.29 = 3,476.20 : x
  2. Step 2: Convert to fraction form
    10,871.60/16,310.29 = 3,476.20/x
  3. Step 3: Cross multiply
    10,871.60x = 16,310.29 × 3,476.20
  4. Step 4: Simplify right side
    10,871.60x = 56,697,780.63
  5. Step 5: Solve for x
    x = 56,697,780.63/10,871.60
  6. Step 6: Final answer
    x = 5,215.22

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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.