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Finding the Fourth Proportional to 18,100.68, 27,149.13 and 7,007.10

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Solution

The fourth proportional to 18,100.68, 27,149.13 and 7,007.10 is: 10,509.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,100.68 : 27,149.13 = 7,007.10 : x
  2. Step 2: Convert to fraction form
    18,100.68/27,149.13 = 7,007.10/x
  3. Step 3: Cross multiply
    18,100.68x = 27,149.13 × 7,007.10
  4. Step 4: Simplify right side
    18,100.68x = 190,236,668.82
  5. Step 5: Solve for x
    x = 190,236,668.82/18,100.68
  6. Step 6: Final answer
    x = 10,509.92

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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.