Home / 10,144.39-15,215.40-2,748.40

Finding the Fourth Proportional to 10,144.39, 15,215.40 and 2,748.40

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Solution

The fourth proportional to 10,144.39, 15,215.40 and 2,748.40 is: 4,122.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,144.39 : 15,215.40 = 2,748.40 : x
  2. Step 2: Convert to fraction form
    10,144.39/15,215.40 = 2,748.40/x
  3. Step 3: Cross multiply
    10,144.39x = 15,215.40 × 2,748.40
  4. Step 4: Simplify right side
    10,144.39x = 41,818,005.36
  5. Step 5: Solve for x
    x = 41,818,005.36/10,144.39
  6. Step 6: Final answer
    x = 4,122.28

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1.5x scale

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.