Home / 18,155.48-27,221.58-7,632.32

Finding the Fourth Proportional to 18,155.48, 27,221.58 and 7,632.32

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Solution

The fourth proportional to 18,155.48, 27,221.58 and 7,632.32 is: 11,443.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,155.48 : 27,221.58 = 7,632.32 : x
  2. Step 2: Convert to fraction form
    18,155.48/27,221.58 = 7,632.32/x
  3. Step 3: Cross multiply
    18,155.48x = 27,221.58 × 7,632.32
  4. Step 4: Simplify right side
    18,155.48x = 207,763,809.47
  5. Step 5: Solve for x
    x = 207,763,809.47/18,155.48
  6. Step 6: Final answer
    x = 11,443.59

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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.