Home / 18,461.07-27,678.20-7,364.43

Finding the Fourth Proportional to 18,461.07, 27,678.20 and 7,364.43

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Solution

The fourth proportional to 18,461.07, 27,678.20 and 7,364.43 is: 11,041.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,461.07 : 27,678.20 = 7,364.43 : x
  2. Step 2: Convert to fraction form
    18,461.07/27,678.20 = 7,364.43/x
  3. Step 3: Cross multiply
    18,461.07x = 27,678.20 × 7,364.43
  4. Step 4: Simplify right side
    18,461.07x = 203,834,129.60
  5. Step 5: Solve for x
    x = 203,834,129.60/18,461.07
  6. Step 6: Final answer
    x = 11,041.30

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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.