Home / 12,329.73-18,500.67-7,648.54

Finding the Fourth Proportional to 12,329.73, 18,500.67 and 7,648.54

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Solution

The fourth proportional to 12,329.73, 18,500.67 and 7,648.54 is: 11,476.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,329.73 : 18,500.67 = 7,648.54 : x
  2. Step 2: Convert to fraction form
    12,329.73/18,500.67 = 7,648.54/x
  3. Step 3: Cross multiply
    12,329.73x = 18,500.67 × 7,648.54
  4. Step 4: Simplify right side
    12,329.73x = 141,503,068.27
  5. Step 5: Solve for x
    x = 141,503,068.27/12,329.73
  6. Step 6: Final answer
    x = 11,476.57

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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.