Home / 10,372.59-15,558.84-2,581.40

Finding the Fourth Proportional to 10,372.59, 15,558.84 and 2,581.40

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Solution

The fourth proportional to 10,372.59, 15,558.84 and 2,581.40 is: 3,872.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,372.59 : 15,558.84 = 2,581.40 : x
  2. Step 2: Convert to fraction form
    10,372.59/15,558.84 = 2,581.40/x
  3. Step 3: Cross multiply
    10,372.59x = 15,558.84 × 2,581.40
  4. Step 4: Simplify right side
    10,372.59x = 40,163,589.58
  5. Step 5: Solve for x
    x = 40,163,589.58/10,372.59
  6. Step 6: Final answer
    x = 3,872.09

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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.