Home / 10,103.40-15,153.89-2,708.42

Finding the Fourth Proportional to 10,103.40, 15,153.89 and 2,708.42

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Solution

The fourth proportional to 10,103.40, 15,153.89 and 2,708.42 is: 4,062.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,103.40 : 15,153.89 = 2,708.42 : x
  2. Step 2: Convert to fraction form
    10,103.40/15,153.89 = 2,708.42/x
  3. Step 3: Cross multiply
    10,103.40x = 15,153.89 × 2,708.42
  4. Step 4: Simplify right side
    10,103.40x = 41,043,009.44
  5. Step 5: Solve for x
    x = 41,043,009.44/10,103.40
  6. Step 6: Final answer
    x = 4,062.30

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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.