Home / 18,570.37-27,812.64-11,158.48

Finding the Fourth Proportional to 18,570.37, 27,812.64 and 11,158.48

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Solution

The fourth proportional to 18,570.37, 27,812.64 and 11,158.48 is: 16,711.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,570.37 : 27,812.64 = 11,158.48 : x
  2. Step 2: Convert to fraction form
    18,570.37/27,812.64 = 11,158.48/x
  3. Step 3: Cross multiply
    18,570.37x = 27,812.64 × 11,158.48
  4. Step 4: Simplify right side
    18,570.37x = 310,346,787.19
  5. Step 5: Solve for x
    x = 310,346,787.19/18,570.37
  6. Step 6: Final answer
    x = 16,711.93

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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.