Home / 18,911.16-26,090.64-10,949.04

Finding the Fourth Proportional to 18,911.16, 26,090.64 and 10,949.04

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Solution

The fourth proportional to 18,911.16, 26,090.64 and 10,949.04 is: 15,105.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,911.16 : 26,090.64 = 10,949.04 : x
  2. Step 2: Convert to fraction form
    18,911.16/26,090.64 = 10,949.04/x
  3. Step 3: Cross multiply
    18,911.16x = 26,090.64 × 10,949.04
  4. Step 4: Simplify right side
    18,911.16x = 285,667,460.99
  5. Step 5: Solve for x
    x = 285,667,460.99/18,911.16
  6. Step 6: Final answer
    x = 15,105.76

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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.