Home / 18,157.71-27,235.62-10,665.39

Finding the Fourth Proportional to 18,157.71, 27,235.62 and 10,665.39

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Solution

The fourth proportional to 18,157.71, 27,235.62 and 10,665.39 is: 15,997.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,157.71 : 27,235.62 = 10,665.39 : x
  2. Step 2: Convert to fraction form
    18,157.71/27,235.62 = 10,665.39/x
  3. Step 3: Cross multiply
    18,157.71x = 27,235.62 × 10,665.39
  4. Step 4: Simplify right side
    18,157.71x = 290,478,509.19
  5. Step 5: Solve for x
    x = 290,478,509.19/18,157.71
  6. Step 6: Final answer
    x = 15,997.53

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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.