Home / 18,612.36-27,893.91-13,658.76

Finding the Fourth Proportional to 18,612.36, 27,893.91 and 13,658.76

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Solution

The fourth proportional to 18,612.36, 27,893.91 and 13,658.76 is: 20,470.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612.36 : 27,893.91 = 13,658.76 : x
  2. Step 2: Convert to fraction form
    18,612.36/27,893.91 = 13,658.76/x
  3. Step 3: Cross multiply
    18,612.36x = 27,893.91 × 13,658.76
  4. Step 4: Simplify right side
    18,612.36x = 380,996,222.15
  5. Step 5: Solve for x
    x = 380,996,222.15/18,612.36
  6. Step 6: Final answer
    x = 20,470.07

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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.