Home / 19,845.75-29,765.16-6,518.55

Finding the Fourth Proportional to 19,845.75, 29,765.16 and 6,518.55

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Solution

The fourth proportional to 19,845.75, 29,765.16 and 6,518.55 is: 9,776.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,845.75 : 29,765.16 = 6,518.55 : x
  2. Step 2: Convert to fraction form
    19,845.75/29,765.16 = 6,518.55/x
  3. Step 3: Cross multiply
    19,845.75x = 29,765.16 × 6,518.55
  4. Step 4: Simplify right side
    19,845.75x = 194,025,683.72
  5. Step 5: Solve for x
    x = 194,025,683.72/19,845.75
  6. Step 6: Final answer
    x = 9,776.69

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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.