Home / 18,445.73-27,666.36-5,119.61

Finding the Fourth Proportional to 18,445.73, 27,666.36 and 5,119.61

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Solution

The fourth proportional to 18,445.73, 27,666.36 and 5,119.61 is: 7,678.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,445.73 : 27,666.36 = 5,119.61 : x
  2. Step 2: Convert to fraction form
    18,445.73/27,666.36 = 5,119.61/x
  3. Step 3: Cross multiply
    18,445.73x = 27,666.36 × 5,119.61
  4. Step 4: Simplify right side
    18,445.73x = 141,640,834.99
  5. Step 5: Solve for x
    x = 141,640,834.99/18,445.73
  6. Step 6: Final answer
    x = 7,678.79

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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.