Home / 10,379.53-15,559.73-4,138.05

Finding the Fourth Proportional to 10,379.53, 15,559.73 and 4,138.05

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Solution

The fourth proportional to 10,379.53, 15,559.73 and 4,138.05 is: 6,203.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,379.53 : 15,559.73 = 4,138.05 : x
  2. Step 2: Convert to fraction form
    10,379.53/15,559.73 = 4,138.05/x
  3. Step 3: Cross multiply
    10,379.53x = 15,559.73 × 4,138.05
  4. Step 4: Simplify right side
    10,379.53x = 64,386,940.73
  5. Step 5: Solve for x
    x = 64,386,940.73/10,379.53
  6. Step 6: Final answer
    x = 6,203.26

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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.