Home / 10,015.44-13,821.72-6,240.84

Finding the Fourth Proportional to 10,015.44, 13,821.72 and 6,240.84

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Solution

The fourth proportional to 10,015.44, 13,821.72 and 6,240.84 is: 8,612.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,015.44 : 13,821.72 = 6,240.84 : x
  2. Step 2: Convert to fraction form
    10,015.44/13,821.72 = 6,240.84/x
  3. Step 3: Cross multiply
    10,015.44x = 13,821.72 × 6,240.84
  4. Step 4: Simplify right side
    10,015.44x = 86,259,143.04
  5. Step 5: Solve for x
    x = 86,259,143.04/10,015.44
  6. Step 6: Final answer
    x = 8,612.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.