Home / 12,440.34-18,660.22-5,042.82

Finding the Fourth Proportional to 12,440.34, 18,660.22 and 5,042.82

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Solution

The fourth proportional to 12,440.34, 18,660.22 and 5,042.82 is: 7,564.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.34 : 18,660.22 = 5,042.82 : x
  2. Step 2: Convert to fraction form
    12,440.34/18,660.22 = 5,042.82/x
  3. Step 3: Cross multiply
    12,440.34x = 18,660.22 × 5,042.82
  4. Step 4: Simplify right side
    12,440.34x = 94,100,130.62
  5. Step 5: Solve for x
    x = 94,100,130.62/12,440.34
  6. Step 6: Final answer
    x = 7,564.11

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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.