Home / 10,991.05-15,168.73-6,276.04

Finding the Fourth Proportional to 10,991.05, 15,168.73 and 6,276.04

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Solution

The fourth proportional to 10,991.05, 15,168.73 and 6,276.04 is: 8,661.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,991.05 : 15,168.73 = 6,276.04 : x
  2. Step 2: Convert to fraction form
    10,991.05/15,168.73 = 6,276.04/x
  3. Step 3: Cross multiply
    10,991.05x = 15,168.73 × 6,276.04
  4. Step 4: Simplify right side
    10,991.05x = 95,199,480.39
  5. Step 5: Solve for x
    x = 95,199,480.39/10,991.05
  6. Step 6: Final answer
    x = 8,661.55

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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.