Home / 18,098.28-27,128.73-7,574.43

Finding the Fourth Proportional to 18,098.28, 27,128.73 and 7,574.43

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Solution

The fourth proportional to 18,098.28, 27,128.73 and 7,574.43 is: 11,353.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,098.28 : 27,128.73 = 7,574.43 : x
  2. Step 2: Convert to fraction form
    18,098.28/27,128.73 = 7,574.43/x
  3. Step 3: Cross multiply
    18,098.28x = 27,128.73 × 7,574.43
  4. Step 4: Simplify right side
    18,098.28x = 205,484,666.37
  5. Step 5: Solve for x
    x = 205,484,666.37/18,098.28
  6. Step 6: Final answer
    x = 11,353.82

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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.