Home / 11,621.57-17,389.28-6,944.12

Finding the Fourth Proportional to 11,621.57, 17,389.28 and 6,944.12

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Solution

The fourth proportional to 11,621.57, 17,389.28 and 6,944.12 is: 10,390.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621.57 : 17,389.28 = 6,944.12 : x
  2. Step 2: Convert to fraction form
    11,621.57/17,389.28 = 6,944.12/x
  3. Step 3: Cross multiply
    11,621.57x = 17,389.28 × 6,944.12
  4. Step 4: Simplify right side
    11,621.57x = 120,753,242.66
  5. Step 5: Solve for x
    x = 120,753,242.66/11,621.57
  6. Step 6: Final answer
    x = 10,390.45

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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.