Home / 10,515.61-15,774.63-2,725.03

Finding the Fourth Proportional to 10,515.61, 15,774.63 and 2,725.03

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Solution

The fourth proportional to 10,515.61, 15,774.63 and 2,725.03 is: 4,087.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,515.61 : 15,774.63 = 2,725.03 : x
  2. Step 2: Convert to fraction form
    10,515.61/15,774.63 = 2,725.03/x
  3. Step 3: Cross multiply
    10,515.61x = 15,774.63 × 2,725.03
  4. Step 4: Simplify right side
    10,515.61x = 42,986,339.99
  5. Step 5: Solve for x
    x = 42,986,339.99/10,515.61
  6. Step 6: Final answer
    x = 4,087.86

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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.