Home / 13,845.24-20,668.14-12,861.09

Finding the Fourth Proportional to 13,845.24, 20,668.14 and 12,861.09

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Solution

The fourth proportional to 13,845.24, 20,668.14 and 12,861.09 is: 19,199.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,845.24 : 20,668.14 = 12,861.09 : x
  2. Step 2: Convert to fraction form
    13,845.24/20,668.14 = 12,861.09/x
  3. Step 3: Cross multiply
    13,845.24x = 20,668.14 × 12,861.09
  4. Step 4: Simplify right side
    13,845.24x = 265,814,808.67
  5. Step 5: Solve for x
    x = 265,814,808.67/13,845.24
  6. Step 6: Final answer
    x = 19,199.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.