Home / 18,237.77-27,336.60-7,142.39

Finding the Fourth Proportional to 18,237.77, 27,336.60 and 7,142.39

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Solution

The fourth proportional to 18,237.77, 27,336.60 and 7,142.39 is: 10,705.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,237.77 : 27,336.60 = 7,142.39 : x
  2. Step 2: Convert to fraction form
    18,237.77/27,336.60 = 7,142.39/x
  3. Step 3: Cross multiply
    18,237.77x = 27,336.60 × 7,142.39
  4. Step 4: Simplify right side
    18,237.77x = 195,248,521.79
  5. Step 5: Solve for x
    x = 195,248,521.79/18,237.77
  6. Step 6: Final answer
    x = 10,705.73

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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.