Home / 13,240.84-19,861.23-8,313.94

Finding the Fourth Proportional to 13,240.84, 19,861.23 and 8,313.94

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Solution

The fourth proportional to 13,240.84, 19,861.23 and 8,313.94 is: 12,470.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.84 : 19,861.23 = 8,313.94 : x
  2. Step 2: Convert to fraction form
    13,240.84/19,861.23 = 8,313.94/x
  3. Step 3: Cross multiply
    13,240.84x = 19,861.23 × 8,313.94
  4. Step 4: Simplify right side
    13,240.84x = 165,125,074.55
  5. Step 5: Solve for x
    x = 165,125,074.55/13,240.84
  6. Step 6: Final answer
    x = 12,470.89

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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.