Home / 18,558.20-27,830.38-7,461.15

Finding the Fourth Proportional to 18,558.20, 27,830.38 and 7,461.15

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Solution

The fourth proportional to 18,558.20, 27,830.38 and 7,461.15 is: 11,188.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,558.20 : 27,830.38 = 7,461.15 : x
  2. Step 2: Convert to fraction form
    18,558.20/27,830.38 = 7,461.15/x
  3. Step 3: Cross multiply
    18,558.20x = 27,830.38 × 7,461.15
  4. Step 4: Simplify right side
    18,558.20x = 207,646,639.74
  5. Step 5: Solve for x
    x = 207,646,639.74/18,558.20
  6. Step 6: Final answer
    x = 11,188.94

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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.