Home / 15,190.17-20,962.94-8,816.28

Finding the Fourth Proportional to 15,190.17, 20,962.94 and 8,816.28

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Solution

The fourth proportional to 15,190.17, 20,962.94 and 8,816.28 is: 12,166.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,190.17 : 20,962.94 = 8,816.28 : x
  2. Step 2: Convert to fraction form
    15,190.17/20,962.94 = 8,816.28/x
  3. Step 3: Cross multiply
    15,190.17x = 20,962.94 × 8,816.28
  4. Step 4: Simplify right side
    15,190.17x = 184,815,104.58
  5. Step 5: Solve for x
    x = 184,815,104.58/15,190.17
  6. Step 6: Final answer
    x = 12,166.76

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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.