Home / 19,662.87-27,134.59-13,697.85

Finding the Fourth Proportional to 19,662.87, 27,134.59 and 13,697.85

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Solution

The fourth proportional to 19,662.87, 27,134.59 and 13,697.85 is: 18,902.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,662.87 : 27,134.59 = 13,697.85 : x
  2. Step 2: Convert to fraction form
    19,662.87/27,134.59 = 13,697.85/x
  3. Step 3: Cross multiply
    19,662.87x = 27,134.59 × 13,697.85
  4. Step 4: Simplify right side
    19,662.87x = 371,685,543.63
  5. Step 5: Solve for x
    x = 371,685,543.63/19,662.87
  6. Step 6: Final answer
    x = 18,902.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.