Home / 12,283.45-18,425.10-3,518.38

Finding the Fourth Proportional to 12,283.45, 18,425.10 and 3,518.38

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Solution

The fourth proportional to 12,283.45, 18,425.10 and 3,518.38 is: 5,277.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,283.45 : 18,425.10 = 3,518.38 : x
  2. Step 2: Convert to fraction form
    12,283.45/18,425.10 = 3,518.38/x
  3. Step 3: Cross multiply
    12,283.45x = 18,425.10 × 3,518.38
  4. Step 4: Simplify right side
    12,283.45x = 64,826,503.34
  5. Step 5: Solve for x
    x = 64,826,503.34/12,283.45
  6. Step 6: Final answer
    x = 5,277.55

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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.