Home / 10,391.85-15,594.60-3,818.09

Finding the Fourth Proportional to 10,391.85, 15,594.60 and 3,818.09

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Solution

The fourth proportional to 10,391.85, 15,594.60 and 3,818.09 is: 5,729.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,391.85 : 15,594.60 = 3,818.09 : x
  2. Step 2: Convert to fraction form
    10,391.85/15,594.60 = 3,818.09/x
  3. Step 3: Cross multiply
    10,391.85x = 15,594.60 × 3,818.09
  4. Step 4: Simplify right side
    10,391.85x = 59,541,586.31
  5. Step 5: Solve for x
    x = 59,541,586.31/10,391.85
  6. Step 6: Final answer
    x = 5,729.64

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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.