Home / 13,181.74-19,771.99-4,861.15

Finding the Fourth Proportional to 13,181.74, 19,771.99 and 4,861.15

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Solution

The fourth proportional to 13,181.74, 19,771.99 and 4,861.15 is: 7,291.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,181.74 : 19,771.99 = 4,861.15 : x
  2. Step 2: Convert to fraction form
    13,181.74/19,771.99 = 4,861.15/x
  3. Step 3: Cross multiply
    13,181.74x = 19,771.99 × 4,861.15
  4. Step 4: Simplify right side
    13,181.74x = 96,114,609.19
  5. Step 5: Solve for x
    x = 96,114,609.19/13,181.74
  6. Step 6: Final answer
    x = 7,291.50

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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.