Home / 12,583.08-18,865.62-5,915.85

Finding the Fourth Proportional to 12,583.08, 18,865.62 and 5,915.85

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Solution

The fourth proportional to 12,583.08, 18,865.62 and 5,915.85 is: 8,869.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,583.08 : 18,865.62 = 5,915.85 : x
  2. Step 2: Convert to fraction form
    12,583.08/18,865.62 = 5,915.85/x
  3. Step 3: Cross multiply
    12,583.08x = 18,865.62 × 5,915.85
  4. Step 4: Simplify right side
    12,583.08x = 111,606,178.08
  5. Step 5: Solve for x
    x = 111,606,178.08/12,583.08
  6. Step 6: Final answer
    x = 8,869.54

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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.